Sam Bradford left Saturday's preseason game after suffering an apparent injury to his left knee. He will not return.

Considering a torn ACL ruined his 2013 season, anything that happens to Bradford's knees is a huge concern. He limped off the field and limped into the locker room and will undergo a series of tests to determine the potential damage. We'll call him day-to-day for now and suffer through watching Shaun Hill working under center now.ANALYST: Howard Bender Mobile App