Wonnum (quadriceps) is missing voluntary workouts Tuesday, Joe Person of The Athletic reports.

The Panthers signed Wonnum (quadriceps) to a two-year deal Thursday, Jeremy Fowler of ESPN.com reports.

The Vikings placed Wonnum (quad) on injured reserve Wednesday.

Head coach Kevin O'Connell confirmed that Wonnum tore his quadriceps in Sunday's 30-24 loss to the Lions, Kevin Seifert of ESPN.com reports.

Wonnum (quadriceps) suffered a partially torn quad during Sunday's 30-24 loss to the Lions, Ian Rapoport of NFL Network reports.

Head coach Kevin O'Connell told reporters after Sunday's 30-24 loss to the Lions that the team is evaluating Wonnum to confirm a quadriceps injury, Ben Goessling of the Minneapolis Star Tribune reports.

Wonnum (knee) has been ruled out for the rest of Sunday's contest against the Lions, Ben Goessling of the Minneapolis Star Tribune reports.

Wonnum notched five tackles (three solo) and one sack during Sunday's 3-0 win at Las Vegas.

Wonnum recorded four tackles (three solo) including a sack in Sunday's 27-19 win versus the Saints.

Wonnum had two sacks, three total tackles and three QB hits in Sunday's win at Green Bay.