Capitals' defenseman Mike Green left Saturday’s practice early with a lower body injury and is questionable for Sunday’s game in New York against the Rangers, according to Capitals coach Adam Oates. “Just being precautious,” Oates said. Green will make the trip to New York and will likely decide on Sunday morning if he’ll play in the 6 p.m. game. If he cannot play, Oates said Tom Poti will take his place on a top pairing with Karl Alzner. Losing Green would be a major blow to the Caps. He leads the club in average ice time (26:33) and ranks sixth in the NHL in that department. He also quarterbacks the power play from the right point and leads all Caps defensemen with seven points.