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.

Polk (concussion) doesn't carry an injury designation for Sunday's game against the Titans.

Polk (concussion) practiced fully Thursday.

Polk (concussion) was limited at practice Wednesday.

Polk (concussion) was present for practice Wednesday, Evan Lazar of the Patriots' official site reports.

Polk (concussion) has been ruled out for Sunday's game against the Jets, Mike Dussault of the Patriots' official site reports.

Polk (concussion) remained sidelined at practice Thursday, Doug Kyed of the Boston Herald reports.

Polk is in the NFL's concussion protocol, Evan Lazar of the Patriots' official site reports.

The Patriots announced that Polk is questionable to return to Sunday's game against the Jaguars in London due to a head injury.