The Bengals placed offensive guard Mike Pollak and Clint Boling the Active/Physically Unable to Perform list prior to the start of camp. Boling was activated on Day 1 and ran with the first-team offense at left guard.
Pollak was activated Day 2 and replaced Boling. Today, they're switching it up again, and now we know why.
As #Bengals walk thru before prac, Boling gets reps at LG. Pollak dressed. Pollak who practiced at LG Fri said they're rotating days on/off— Coley Harvey (@ColeyHarvey) July 26, 2014
It appears the Bengals are imply playing it safe with both of them. Boling is coming off a torn ACL, while Pollak suffered a knee injury during an offseason workout that's apparently not fully healed.