Will Smith and Marc Anthony put the kibosh on all those affair rumors tonight -- by bro-ing out at the Miami Dolphins game.
The two were extremely buddy buddy in a luxury box ... watching the Monday Night Football game between the Dolphins and New England Patriots. Miami Heat star Dwyane Wade was also hanging out with Will and Marc.
Jada Pinkett-Smith was NOT seen at the game. Guess it's just a boys' night.