Brennan, who reaggravated his right ankle injury in practice Tuesday, saw it flare up again yesterday after being sacked midway through the first quarter.
Brennan had never thrown more than two interceptions in 29 previous games. He completed 30 of 49 passes for 369 yards and three touchdowns before leaving the game with 5 minutes, 42 seconds remaining in the fourth quarter.
“He may have to deal with that (the ankle) the whole year,” head coach June Jones said. “That’s the way it goes.”
Brennan said, “I tweaked it a little. I hate to make excuses, but I just didn’t step in as well and some of the passes were underthrown a little. A little better throws and they are touchdowns or big gains. It was a weird day.”
Quarterbacks coach Dan Morrison said the injured ankle caused Brennan “not to be able to do some of the things he normally does as well. But it is something he’s going to have to work through and he’s a tough kid.”