The seventh-round draft pick was hurt during the second half in Seattle. The Bucs placed Stroughter on injured reserve Monday and promoted wide receiver Mario Urrutia from the practice squad to fill the roster spot.
Stroughter is third on the team with 31 receptions for 334 yards and one touchdown. He also averaged 29.5 yards on 11 kickoff returns, running one back 97 yards for a TD.
The Associated Press contributed to this report.