Polk (shoulder) was placed on injured reserve Saturday, Chris Mason of The Springfield Republican reports.

Polk (shoulder) has been ruled out for Sunday's game against the Bills, Doug Kyed of the Boston Herald reports.

Polk (shoulder) did not participate at practice Thursday, Mike Reiss of ESPN.com reports.

Polk (shoulder) didn't practice Wednesday.

Polk was on the field for 20 of a possible 51 snaps on offense in Sunday's 30-17 loss to the Cardinals, Mike Reiss of ESPN.com reports.

Polk logged 20 of a possible 72 snaps on offense in Sunday's 25-24 loss to the Colts, per Mike Reiss of ESPN.com.

Polk was on the field for 23 of a possible 69 snaps on offense in Sunday's 34-15 loss to the Dolphins, per Mike Reiss of ESPN.com.

Polk logged 31 of a possible 76 snaps on offense in Sunday's 28-22 loss to the Rams, per Mike Reiss of ESPN.com.

Polk, who was on the field for 26 of a possible 64 snaps on offense in Sunday's 19-3 win over the Bears, per Mike Reiss of ESPN.com, caught his only target in the contest for a two-yard TD.

Polk logged nine of a possible 69 snaps on offense in Sunday's 20-17 overtime loss to the Titans, Mike Reiss of ESPN.com reports.