John Ferguson, Vice President and General Manager of the Toronto Maple Leafs, announced Monday that defenceman Carlo Colaiacovo underwent successful knee arthroscopy surgery yesterday in Toronto. Colaiacovo is expected to begin his rehabilitation from the surgery in two weeks. He appeared in 48 games for the Maple Leafs in 2006-07 and collected eight goals, nine assists, 22 penalty minutes, and a plus five mark.