During the spot, Williams is being tutored on his signatures by ex-Chicago Bears Super Bowl-winning quarterback Jim McMahon. At one point, McMahon is looking over Williams' work on inscriptions.

Williams is working on signing cards for Topps Chrome trading cards. But his autograph has to meet McMahon's approval.

In a collaboration for Topps trading cards, former Chicago Bears Super Bowl-winning quarterback Jim McMahon ... and McMahon for Topps. Caleb Williams takes the quality of his autograph VERY ...

Yesterday, Chicago Bears quarterback Caleb Williams pulled up to Topps HQ to perfect his autograph for the new line of 2024 Topps Chrome football cards. Former Bears QB Jim McMahon also made an ...

Bears quarterback Caleb Williams collaborated with Chicago legend Jim McMahon in a funny skit for Topps trading cards.