Robert Griffin III's first TD pass since 2016 on Sunday almost never happened ... the former Heisman Trophy winner just revealed he nearly quit football to switch to track.
RGIII was cut from the Browns after the 2016 season ... and that's when he says he thought about giving up the game, writing on social media on Monday that he "contemplated" the move.
Of course, the 29-year-old was a superstar on the track back in the day ... he set state records in high school as a hurdler -- and even killed it when he ran for one season at Baylor.