"It looked pretty bad,
Adidas AlphaBounce Pas Cher France, and I'm pretty sure he's going to be out for a while," Wallace said, adding that he hadn't heard anything official on Keller's status.
Houston first-round pick receiver DeAndre Hopkins was also injured; leaving in the second quarter with a concussion. Hopkins, the 27th overall pick this year out of Clemson, had two receptions for 22 yards before the injury.