This is a trick question. There aren't any.
Joe Montana
Peyton Manning!
Ndamukong Suh from the Detroit Lions is the most hated player in the NFL.
John Elway.
Terrel Owens NFL Buffalo Bills
Rudy
michael jordan is the most famous nba player
most wat td
Morten Anderson
Yes, a number of famous players have done so (or tried to do so). The most famous case I can recollect was Eric Dickerson negotiating with the Indianapolis Colts for himself.
Brendan Shanahan is most famous for being NFL football coach Mike Shanahan's son, and is also an NFL football coach himself, an offensive coordinator.
Herb Adderly and Forrest Gregg have the most NFL titles with six each.