The Rangers summoned Chad Kolarik from the AHL during last night's game to replace Brandon Dubinsky, and were forced to make another move when Ruslan Fedotenko sprained his left shoulder at 9:24 of the second period after a hard shoulder check from Leafs defenseman Mike Komisarek. He will miss two to four weeks and coach John Tortorella said Brodie Dupont also would join the team for the road trip to Carolina and Atlanta.

Dubinsky was lost to a stress fracture in his left leg for three to four weeks. Kolarik, 24, a right wing /center, played on a line with the Canadiens' Max Pacioretty in his senior year at the University of Michigan when he scored 30 goals. He was acquired from Columbus for Dane Byers on Nov. 11.

Described as a great skater who can finish, the 5-11, 175-pound Kolarik was 13-10-23 for Springfield and 17-16-33 in 26 games for the Whale.

The Abington, Pa., native was drafted 199th overall by Phoenix in 2004 and signed a three-year entry level contract with the Coyotes on April 13, 2008. When he was acquired by Columbus in March, he was tied for second on the San Antonio Rampage in goals. He had registered 37 goals, 48 assists and 88 penalty minutes in 135 AHL games.

Kolarik and Dupont would be the seventh and eighth rookies to debut for the Rangers this season. Dupont, a 23-year-old Manitoba native, is a 6-3 center. He is 8-12-20 in 40 games for the Whale.

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Ice chips

Erik Christensen, who sprained his right MCL Dec. 29, was walking normally and said he hopes to begin skating in 7-10 days.