Former Hawaii quarterback Colt Brennan’s football future is in question after he was released by the Saskatchewan Roughriders of the Canadian Football League on Monday.

Bruce Tollner, one of Brennan’s two agents, confirmed the release to the Star-Advertiser.

Tollner said, “we have no comment at this time” on Brennan’s plans.

This was Brennan’s second comeback attempt after suffering serious injuries in a two-car crash in November 2010.

In the summer of 2011, he signed with the Hartford Colonials of the United Football League. But the Colonials folded before playing a game.

In February, Brennan signed with Saskatchewan. Prior to the signing, the Roughriders had released all of last year’s quarterbacks except starter Darian Durant. Brennan was among four QBs competing for two backup slots.

There were reports Brennan was doing well. On the Roughriders’ site, it was noted that during the fifth practice, “Colt Brennan and Chris Getzlaf hooked up on a pair of highlight reel catches.”

But Brennan did not make it to the Roughriders’ first exhibition game. They face the B.C. Lions on Wednesday.

Brennan has had several setbacks since his senior season in 2007, when he was a Heisman Trophy finalist. He was perfect during passing drills at the 2008 NFL scouting combine, but then suffered a torn labrum. He was a sixth-round pick of the Washington Redskins in the 2008 draft.

But his stay with the Redskins was marred by injuries. The team cut Brennan in 2010. He signed with the Oakland Raiders that summer, but was cut before the season started.

In all, Brennan underwent four surgeries — one to each knee and each labrum. He suffered injuries to his ear, collarbone and ribs during the car accident, in which he was a passenger.