UNC quarterback T.J. Yates made it through spring practice unscathed, but an impromptu game of Ultimate Frisbee proved rougher.
Yates sprained his right thumb playing Ultimate Frisbee during a team activity session on Wednesday in Chapel Hill, a UNC spokesman said Friday.
Yates and UNC coach Butch Davis were not available for comment.
Yates will need six weeks to rehabilitate his throwing hand and will have to wear a splint during that time. The two-year starter does not need surgery, however, and the injury is not expected to have a lingering effect on the Tar Heels' quarterback or remain a concern by the time training camp starts in August.
The freak accident does raise questions about Yates' durability. He missed six games in 2008 with a fractured left ankle. He had surgery on his right shoulder after the 2007 season, which cost him all of spring practice in 2008.
Yates, who will be a junior this fall, completed 81 of-135 passes for 1,168 yards in seven games last season. He finished with 11 touchdowns and four interceptions.