Sergio Martinez Knocks Out Macklin in 11th Round

Martinez dropped tough Irishman Matthew Macklin twice near the end of the 11th round with the kind of powerful left hands he's become known for before Macklin's trainer Buddy McGirt stopped it as the round ended.

Martinez improved to 49-2-2, with 28 KOs, before a sold-out crowd of 4,671 at the Theater at Madison Square Garden on St. Patrick's Day.