If you had rookie E.J. Manuel winning the Buffalo Bills starting quarterback job prior to Week 1, chief competitor Kevin Kolb may have provided some assistance on Saturday morning.

While heading from one field to another at training camp, Kolb slipped on a rubber mat and tweaked his knee.

According to Bills head coach Doug Marrone, Kolb is day to day but Manuel will see more first-team reps.

Geez, Kevin.