Dallas Mavericks forward Shawn Marion left Tuesday night's game against the Lakers with a bruised right shoulder. The Mavericks said after halftime that Marion wouldn't return to the game. Coach Rick Carlisle said he wasn't certain about a timetable for Marion's return. Marion fell to the floor after he got tangled up with Pau Gasol and tripped over teammate Dirk Nowitzki. He was pressing at his right shoulder area and grimacing in pain. He stayed down for about a minute and was escorted to the locker room by an athletic trainer immediately after getting to his feet and did not return to the game.