The six-foot-five, 232-pound Young is on Saskatchewan's negotiation list, giving it CFL exclusivity to the former University of Texas star.
As a rookie with the Tennessee Titans, Young was named the NFL's Offensive Rookie of the Year, and more impressively, a year-one Pro Bowl selection.
The CFL regular season starts in a little more than three months.
Free to sign anywhere for the 2011 season, Young chose the "Dream Team" Philadelphia Eagles, signing a one-year deal to back up Michael Vick.
Young finished his shortened National Football League career with 8,964 yards and 46 touchdowns through the air and another 1,459 yards and 12 scores with his legs.
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Years removed from his glory days in the NCAA and NFL, Vince Young faces an uphill battle trying to resurrect his pro football career with the Saskatchewan Roughriders.
It was argued at the time had the Heisman voting process occurred after Bowl season, Young would have been awarded College Football's top individual prize over Bush.
There is no guarantee Young, 33, will ever appear in a game with Saskatchewan, who lost won a league title in 2013. The Riders signed Kevin Glenn, 37, for his third stint with the CFL club and also have Canadian Brandon Bridge and Americans G.J. Kinne, Jake Waters and Bryan Bennett on the roster. "It's going to take some time but I love to learn from my mistakes, so we'll see", Young said.
Young's popularity skyrocketed at the University of Texas, where his.938 winning percentage (30-2) ranks sixth in Division I history. He announced his retirement on June 14, 2014. "I always respect the game. because you know what players go through behind the scenes". I got away from the game to clean up a bunch of stuff off the field. I'm so excited to play the game again. "This was a good move for me because I still have the fire to play football".