There are many great celebrity endorsements, but there are also too many hilariously bad commercials featuring athletes. Whether it’s half of the Pittsburgh Penguins painfully pitching for a local car dealership, Marshawn Lynch shilling for a plumber or Joe Flacco peddling Pizza Hut of Maryland, these are some of the dumbest commercials famous starring sports stars. WatchMojo counts down ten of the most painfully awkward athlete endorsements.