Provo » One of BYU's top football players is in danger of missing the Sept. 5 showdown against Oklahoma.

Left tackle Matt Reynolds, the only returning starter on BYU's offensive line, fractured his left hand in practice Wednesday.

Reynolds, a sophomore, hurt the hand during a team scrimmage. An X-ray taken after the practice showed the break.

Reynolds will be examined by a specialist later today or Thursday and it will be determined then when he will be able to return, said BYU football sports information director Brett Pyne.

Also Wednesday, BYU coach Bronco Mendenhall said starting inside linebacker Terrance Hooks will be out at least two weeks with a hamstring injury.

The Cougars practiced in helmets and shoulder pads on Wednesday. Thursday, they will practice in full pads for the first time.