Adam Humphries' decision to sign with the Tennessee Titans instead of the Patriots in mid-March left some fans in New England scratching their heads.

Which free-agent wide receiver would want to catch passes from Marcus Mariota instead of six-time Super Bowl champion Tom Brady?

Humphries doesn't question Brady's excellence, but in a recent interview with The Athletic's Travis Haney, he admitted Brady's advanced age was something he considered in deciding to stick with the Titans.

"Obviously, he’s the G.O.A.T. That’s that simple," Humphries told Haney of Brady. "But there’s so much that factors into a decision. It was a four-year deal. Who knows how many (years) he’s got left? There’s a lot that goes into it."

Patriots fans won't want to hear it, but Humphries raises a fair question. Brady, who turns 42 in August, will be 46 by the final year of Humphries' contract. He's said he wants to play until age 45, but it's worth wondering whether he'll accomplish that goal.

Of course, you could argue the benefits of playing with Brady outweigh that risk. The legendary quarterback has made stars out of slot receivers Wes Welker and Julian Edelman and helped revive Danny Amendola's career.

But even after the Patriots reportedly presented Humphries with a better four-year offer than the Titans, Humphries felt Tennessee presented a better overall opportunity for him.

"Obviously the chance to play with him would have been awesome, but a lot of things factor into that decision," Humphries said of Brady. "Ultimately, I thought this was coming here to a team that was on the rise and with young talent on the offense and a really good defense. They’d had a taste of the playoffs. I felt like my need at the slot position was great. I felt like I could really contribute and start something new here."

Click here to download the new MyTeams App by NBC Sports! Receive comprehensive coverage of your teams and stream the Celtics easily on your device.