Sean Keeley

The Red Sox have signed free-agent shortstop Marco Scutaro, who satisfied Boston’s concerns about his health after he worked out for the club Tuesday.

Marty Turco gave up an early goal to Saku Koivu, but turned aside 26 shots, as the Dallas Stars scored three times in the third period to post a 3-1 win over the road weary Anaheim Ducks.

Bill Guerin’s power-play goal seven minutes into the third period proved to be the winner, as the Pittsburgh Penguins tacked on a pair of empty-net tallies to seal a 4-1 victory over the Colorado Avalanche.

Patrick O’Sullivan netted two goals to lift the Edmonton Oilers to a 4-1 win over Detroit at Joe Louis Arena.

Alexander Semin returned from a right wrist injury to post two goals and two assists as Washington rocked Florida, 6-2, at Verizon Center.

Roberto Luongo stopped all 38 shots he faced for his second shutout of the season as Vancouver shut down Philadelphia, 3-0, at Wachovia Center.

Derek Roy, Andrej Sekera and Jason Pominville each had a goal and an assist, and the Buffalo Sabres built up a big lead and hung on to beat the Montreal Canadiens, 6-2, at HSBC Arena.