It may not be the worst thing for the Boston Celtics that Kyrie Irving could be headed for the door. The Celtics drafted Tennessee’s Grant Williams at No. 22 on Thursday night, and Williams is an avowed round-Earth advocate.

Irving, of course, came out as a flat-Earth truther in 2017 despite centuries of evidence to the contrary. Williams, whose mother has worked at NASA for 25 years, likes to stick to facts. It’s because of his mother that he told Shams Charania that he has no time for pseudoscience — the Earth is round, no matter what Irving says.

Grant Williams: “With my mom, I don’t really think of theories. I kind of know, for sure, what’s what. So it’s kind of nice to have that mindset.”

Shams Charania: “What’s the big thing that you can debunk, if there is anything? That you hear a lot, you hear people say a lot, but you’re like ‘that’s scientifically not true.’”

Grant Williams: “Kyrie’s Earth-is-flat theory is scientifically not true. That’s the one thing I can debunk if we’re being pretty honest. That’s just not true at all.”

Williams had no idea he’d be drafted by the Celtics when he did that interview, but it’s hard to imagine him changing his answer about the world being flat just because he might play with Kyrie Irving.

Irving apologized for this flat-Earth comments in 2018, but notably didn’t say that he believes the Earth is round. He said that some opinions are best discussed in an “intimate setting,” which made it seem like he still believes the Earth is flat when it very much is not.

If Irving re-signs with the Celtics this summer, Williams might need to ask his mother and some of her NASA colleagues to come to Boston to do a special lesson on why the Earth is absolutely, undoubtedly, scientifically 100 percent round. Knowing Irving, that’s probably not going to change his mind, but it’s worth a shot.

30 PHOTOS Every first-round pick of the 2019 NBA draft See Gallery Every first-round pick of the 2019 NBA draft Duke's Zion Williamson, right, poses for photographs with NBA Commissioner Adam Silver after being selected by the New Orleans Pelicans as the first pick during the NBA basketball draft Thursday, June 20, 2019, in New York. (AP Photo/Julio Cortez) NEW YORK, NEW YORK - JUNE 20: Ja Morant poses with NBA Commissioner Adam Silver after being drafted with the second overall pick by the Memphis Grizzlies during the 2019 NBA Draft at the Barclays Center on June 20, 2019 in the Brooklyn borough of New York City. NOTE TO USER: User expressly acknowledges and agrees that, by downloading and or using this photograph, User is consenting to the terms and conditions of the Getty Images License Agreement. (Photo by Sarah Stier/Getty Images) NEW YORK, NEW YORK - JUNE 20: RJ Barrett poses with NBA Commissioner Adam Silver after being drafted with the third overall pick by the New York Knicks during the 2019 NBA Draft at the Barclays Center on June 20, 2019 in the Brooklyn borough of New York City. NOTE TO USER: User expressly acknowledges and agrees that, by downloading and or using this photograph, User is consenting to the terms and conditions of the Getty Images License Agreement. (Photo by Sarah Stier/Getty Images) NEW YORK, NEW YORK - JUNE 20: De'Andre Hunter poses with NBA Commissioner Adam Silver after being drafted with the fourth overall pick by the Los Angeles Lakers during the 2019 NBA Draft at the Barclays Center on June 20, 2019 in the Brooklyn borough of New York City. NOTE TO USER: User expressly acknowledges and agrees that, by downloading and or using this photograph, User is consenting to the terms and conditions of the Getty Images License Agreement. (Photo by Sarah Stier/Getty Images) NEW YORK, NEW YORK - JUNE 20: Darius Garland poses with NBA Commissioner Adam Silver after being drafted with the fifth overall pick by the Cleveland Cavaliers during the 2019 NBA Draft at the Barclays Center on June 20, 2019 in the Brooklyn borough of New York City. NOTE TO USER: User expressly acknowledges and agrees that, by downloading and or using this photograph, User is consenting to the terms and conditions of the Getty Images License Agreement. (Photo by Sarah Stier/Getty Images) NEW YORK, NEW YORK - JUNE 20: Jarrett Culver poses with NBA Commissioner Adam Silver after being drafted with the sixth overall pick by the Phoenix Suns during the 2019 NBA Draft at the Barclays Center on June 20, 2019 in the Brooklyn borough of New York City. NOTE TO USER: User expressly acknowledges and agrees that, by downloading and or using this photograph, User is consenting to the terms and conditions of the Getty Images License Agreement. (Photo by Sarah Stier/Getty Images) NEW YORK, NEW YORK - JUNE 20: Coby White poses with NBA Commissioner Adam Silver after being drafted with the seventh overall pick by the Chicago Bulls during the 2019 NBA Draft at the Barclays Center on June 20, 2019 in the Brooklyn borough of New York City. NOTE TO USER: User expressly acknowledges and agrees that, by downloading and or using this photograph, User is consenting to the terms and conditions of the Getty Images License Agreement. (Photo by Sarah Stier/Getty Images) NEW YORK, NEW YORK - JUNE 20: Jaxson Hayes poses with NBA Commissioner Adam Silver after being drafted with the eighth overall pick by the Atlanta Hawks during the 2019 NBA Draft at the Barclays Center on June 20, 2019 in the Brooklyn borough of New York City. NOTE TO USER: User expressly acknowledges and agrees that, by downloading and or using this photograph, User is consenting to the terms and conditions of the Getty Images License Agreement. (Photo by Sarah Stier/Getty Images) NEW YORK, NEW YORK - JUNE 20: Rui Hachimura poses with NBA Commissioner Adam Silver after being drafted with the ninth overall pick by the Washington Wizards during the 2019 NBA Draft at the Barclays Center on June 20, 2019 in the Brooklyn borough of New York City. NOTE TO USER: User expressly acknowledges and agrees that, by downloading and or using this photograph, User is consenting to the terms and conditions of the Getty Images License Agreement. (Photo by Sarah Stier/Getty Images) NEW YORK, NEW YORK - JUNE 20: Cam Reddish poses with NBA Commissioner Adam Silver after being drafted with the tenth overall pick by the Atlanta Hawks during the 2019 NBA Draft at the Barclays Center on June 20, 2019 in the Brooklyn borough of New York City. NOTE TO USER: User expressly acknowledges and agrees that, by downloading and or using this photograph, User is consenting to the terms and conditions of the Getty Images License Agreement. (Photo by Sarah Stier/Getty Images) CHARLOTTE, NC - MARCH 15: North Carolina Tar Heels guard Cameron Johnson (13) shoots an open three point shot during the ACC basketball tournament between the Duke Blue Devils and the North Carolina Tar Heels on March 15, 2019, at the Spectrum Center in Charlotte, NC. (Photo by William Howard/Icon Sportswire via Getty Images) NEW YORK, NEW YORK - JUNE 20: PJ Washington reacts after being drafted with the 12th overall pick by the Charlotte Hornets during the 2019 NBA Draft at the Barclays Center on June 20, 2019 in the Brooklyn borough of New York City. NOTE TO USER: User expressly acknowledges and agrees that, by downloading and or using this photograph, User is consenting to the terms and conditions of the Getty Images License Agreement. (Photo by Sarah Stier/Getty Images) NEW YORK, NEW YORK - JUNE 20: Tyler Herro poses with NBA Commissioner Adam Silver after being drafted with the 13th overall pick by the Miami Heat during the 2019 NBA Draft at the Barclays Center on June 20, 2019 in the Brooklyn borough of New York City. NOTE TO USER: User expressly acknowledges and agrees that, by downloading and or using this photograph, User is consenting to the terms and conditions of the Getty Images License Agreement. (Photo by Sarah Stier/Getty Images) NEW YORK, NEW YORK - JUNE 20: Romeo Langford poses with NBA Commissioner Adam Silver after being drafted with the 14th overall pick by the Boston Celtics during the 2019 NBA Draft at the Barclays Center on June 20, 2019 in the Brooklyn borough of New York City. NOTE TO USER: User expressly acknowledges and agrees that, by downloading and or using this photograph, User is consenting to the terms and conditions of the Getty Images License Agreement. (Photo by Sarah Stier/Getty Images) NEW YORK, NEW YORK - JUNE 20: Sekou Doumbouya poses with NBA Commissioner Adam Silver after being drafted with the 15th overall pick by the Detroit Pistons during the 2019 NBA Draft at the Barclays Center on June 20, 2019 in the Brooklyn borough of New York City. NOTE TO USER: User expressly acknowledges and agrees that, by downloading and or using this photograph, User is consenting to the terms and conditions of the Getty Images License Agreement. (Photo by Sarah Stier/Getty Images) LEXINGTON, KY - FEBRUARY 23: Chuma Okeke #5 of the Auburn Tigers is seen during the game against the Kentucky Wildcats at Rupp Arena on February 23, 2019 in Lexington, Kentucky. (Photo by Michael Hickey/Getty Images) NEW YORK, NEW YORK - JUNE 20: Nickeil Alexander-Walker poses with NBA Commissioner Adam Silver after being drafted with the 17th overall pick by the Brooklyn Nets during the 2019 NBA Draft at the Barclays Center on June 20, 2019 in the Brooklyn borough of New York City. NOTE TO USER: User expressly acknowledges and agrees that, by downloading and or using this photograph, User is consenting to the terms and conditions of the Getty Images License Agreement. (Photo by Sarah Stier/Getty Images) NEW YORK, NEW YORK - JUNE 20: Goga Bitadze poses with NBA Commissioner Adam Silver after being drafted with the 18th overall pick by the Indiana Pacers during the 2019 NBA Draft at the Barclays Center on June 20, 2019 in the Brooklyn borough of New York City. NOTE TO USER: User expressly acknowledges and agrees that, by downloading and or using this photograph, User is consenting to the terms and conditions of the Getty Images License Agreement. (Photo by Sarah Stier/Getty Images) NEW YORK, NEW YORK - JUNE 20: Luka Samanic poses with NBA Commissioner Adam Silver after being drafted with the 19th overall pick by the San Antonio Spurs during the 2019 NBA Draft at the Barclays Center on June 20, 2019 in the Brooklyn borough of New York City. NOTE TO USER: User expressly acknowledges and agrees that, by downloading and or using this photograph, User is consenting to the terms and conditions of the Getty Images License Agreement. (Photo by Sarah Stier/Getty Images) NEW YORK, NEW YORK - JUNE 20: Matisse Thybulle poses with NBA Commissioner Adam Silver after being drafted with the 20th overall pick by the Boston Celtics during the 2019 NBA Draft at the Barclays Center on June 20, 2019 in the Brooklyn borough of New York City. NOTE TO USER: User expressly acknowledges and agrees that, by downloading and or using this photograph, User is consenting to the terms and conditions of the Getty Images License Agreement. (Photo by Sarah Stier/Getty Images) NEW YORK, NEW YORK - JUNE 20: Brandon Clarke poses with NBA Commissioner Adam Silver after being drafted with the 21st overall pick by the Oklahoma City Thunder during the 2019 NBA Draft at the Barclays Center on June 20, 2019 in the Brooklyn borough of New York City. NOTE TO USER: User expressly acknowledges and agrees that, by downloading and or using this photograph, User is consenting to the terms and conditions of the Getty Images License Agreement. (Photo by Sarah Stier/Getty Images) Grant Williams speaks with the media during the second day of the NBA draft basketball combine in Chicago, Friday, May 17, 2019. (AP Photo/Nam Y. Huh) The Black Team's Darius Bazley #55 in action against the White Team during the Jordan Brand Classic high school basketball game, Sunday, April 8, 2018, in Brooklyn. (AP Photo/Gregory Payan) Virginia's Ty Jerome celebrates during overtime of the men's NCAA Tournament college basketball South Regional final game against Purdue, Saturday, March 30, 2019, in Louisville, Ky. Virginia won 80-75. (AP Photo/Michael Conroy) NBA Commissioner Adam Silver, left, poses for photographs with North Carolina's Nassir Little after the Portland Trail Blazers selected him with the 25th pick overall in the NBA basketball draft Thursday, June 20, 2019, in New York. (AP Photo/Julio Cortez) Belmont forward Dylan Windler (3) celebrates with fans after an NCAA college basketball game against Vanderbilt Monday, Nov. 13, 2017, in Nashville, Tenn. Belmont won 69-60. (AP Photo/Mark Humphrey) NBA Commissioner Adam Silver poses for photographs with Florida State's Mfiondu Kabengele after the Brooklyn Nets selected him as the 27th pick overall in the NBA basketball draft Thursday, June 20, 2019, in New York. (AP Photo/Julio Cortez) NBA Commissioner Adam Silver, left, poses for photographs with Michigan's Jordan Poole after the Golden State Warriors selected him as the 28th pick overall in the NBA basketball draft Thursday, June 20, 2019, in New York. (AP Photo/Julio Cortez) NBA Commissioner Adam Silver, left, poses for photographs with Kentucky's Keldon Johnson after the San Antonio Spurs selected him as the 29th pick overall in the NBA basketball draft Thursday, June 20, 2019, in New York. (AP Photo/Julio Cortez) NBA Commissioner Adam Silver poses for photographs with Southern California's Kevin Porter Jr. after the Milwaukee Bucks selected him as the 30th pick overall in the NBA basketball draft Thursday, June 20, 2019, in New York. (AP Photo/Julio Cortez) Up Next See Gallery Discover More Like This HIDE CAPTION SHOW CAPTION of SEE ALL BACK TO SLIDE

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