TAMPA, Fla. -- The Buccaneers believe that All-Pro left tackle Tristan Wirfs suffered a sprained MCL in the first half Sunday against the 49ers, a source told ESPN's Jeremy Fowler.
The three-time Pro Bowl selection and team captain will require additional testing, including an MRI, to determine the severity, the source told Fowler.
Wirfs suffered the injury on a third-and-7 play with 5:06 to go in the second quarter.