Denver Broncos' receiver Wes Welker was at the Knicks/Celtics game earlier in the week, and got totally videobombed on the arena fan cam.

Welker was being shown on the jumbotron, along with teammates Demaryius Thomas and Eric Decker when a fan started mocking Welker.

The guy seems to be reminding everyone of Welker's famous "dropped" pass late in the Patriots' Super Bowl loss to the New York Giants a few years ago.

Welker gets the last laugh here, though, because if this guy is a Giants or a Patriots fan, guess where those teams are this weekend? Certainly not playing in the biggest game of the year.