SALT LAKE CITY -- The Utah Jazz signed a 5-year-old boy with leukemia to a one-day contract for a special scrimmage on Monday night.

JP Gibson, who was diagnosed with acute lymphoblastic leukemia, signed his contract with Jazz President Randy Rigby before joining the team in uniform for the annual preseason intrasquad scrimmage at EnergySolutions Arena.

JP was joined by his parents, Josh and Megan, and his 2-year-old sister, Elsie. The family was hosted by the Jazz and photographer Jon Diaz's "Anything Can Be" project that creates storybooks for children with cancer about their dreams and wishes.

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JP, wearing a No. 1 jersey, even got to play in the scrimmage. He was passed the ball and dribbled into the lane, where 7-foot-1 center Rudy Gobert lifted him up so he could dunk and slap hands with some players as fans roared.

"It was a pretty cool moment for Gibson and the Jazz," writes CBSSports.com's Zach Harper. "Gibson is only 36,372 points away from tying Karl Malone for the franchise scoring record."