Irving to have knee surgery, Antetokounmpo out with ankle sprain

Boston's Kyrie Irving and Milwaukee's Giannis Antetokounmopo, two of the NBA's top-10 scorers, will be sidelined with injuries for road games Friday, their clubs announced. Irving, who celebrated his 26th birthday Friday, is averaging 24.4 points, 5.1 assists and 3.8 rebounds in 60 games this season but has been nagged by a sore left knee for the injury-hit Celtics, who open a four-game road trip at Portland. It's the same left knee Irving hurt in the opening game of the 2015 NBA Finals playing for Cleveland against eventual champion Golden State, a setback that required kneecap surgery.