Rumors, moves, injuries and newsmakers...

Hossa injures knee in first game with Pens; Richards explodes with five assists in Dallas debut; Havlat back in sick bay with sore shoulder; Kronwall set to return to Red Wings on Friday; Murray loses first game back behind Sens' bench; and more...

BLACKHAWKS 
Martin Havlat is back in the Chicago infirmary after re-aggravating a shoulder injury on Wednesday. The injury-prone forward missed 22 games earlier this season when he originally dislocated the shoulder. The injury comes at a bad time for Havlat who had been playing well of late. He had three goals and one assist over his last five games. Injuries limited the fragile Havlat to 56 games with the Blackhawks in 2006-07 and just 18 contests in 2005-06 with the Senators.

BRUINS 
Boston's Marco Sturm scored twice in Thursday's 5-1 romp over Pittsburgh. The pair of goals gives the veteran forward 200 for his career. It was the fifth consecutive win for the sizzling Bruins. Boston goalie Tim Thomas missed his chance for back-to-back shutouts when Pittsburgh's Pascal Dupuis scored late in the third period. Thomas made 50 saves in blanking Ottawa 4-0 on Tuesday.

FLYERS 
Vaclav Prospal did not make much of an impact in his first game with the Flyers. The former Tampa Bay star played just over 18 minutes in Philadelphia's 3-1 win over Ottawa on Thursday. He registered no points while taking one shot on goal. Prospal had 29 goals and 28 assists for the Lightning before being traded to the Flyers at the deadline.

KINGS 
Los Angeles defenseman Rob Blake was back in the Kings lineup on Thursday after missing 11 games with an ankle injury. The team captain quickly shook off the rust and managed to log over 20 minutes of ice time in a 5-4 loss to the Oilers. The veteran contributed three shots (no points) and a tripping minor in the contest. The return to the Kings was welcome for Blake who had been dangled as trade bait in recent weeks.

LIGHTNING 
Tampa forward Chris Gratton will be out indefinitely after opting to undergo surgery next week to repair a torn labrum in his left hip. The veteran had 10 goals and 11 assists for the Lightning in 60 games this season. Forward Junior Lessard was called up from Norfolk in the AHL to fill the available roster spot. He had 16 goals and 20 assists in 55 games in the minors this season before his promotion.

PENGUINS 
A nightmare scenario may be unfolding in Pittsburgh with new acquisition Marian Hossa knocked out of his first game with the Penguins with a knee injury. The 29-year-old forward had to leave the ice in the second period of Thursday's 5-1 loss to the Bruins after a knee-on-knee collision with Boston's Glen Murray. The severity of the injury is not yet known, but considering how much Pittsburgh gave up to obtain the 29-year-old sniper, it could turn out to be one of the costliest trades in NHL history. Hossa is set to become an unrestricted free agent at the conclusion of this season. Pittsburgh gave up Colby Armstrong, Erik Christensen, Angelo Esposito and a first-round draft pick to obtain him on Tuesday.

RED WINGS 
Detroit will have some much needed help on the blueline on Friday against San Jose after Niklas Kronwall was activated from injured reserve on Thursday. The Swedish rearguard has missed Detroit's last 13 games with an injured collarbone. New acquisition Brad Stuart will also be on hand for the Red Wings who are still missing defensemen Nicklas Lidstrom (knee), Brian Rafalski (groin) and Chris Chelios (knee). Kronwall had five goals and 20 assists in 2007-08 before he went down with the injury.

SENATORS 
Bryan Murray's return behind the bench did not make much of a difference on Thursday as the Senators dropped a 3-1 decision to the Flyers. It was the seventh loss in the past nine games for Ottawa. Murray, who was promoted from coach to GM during the offseason, fired coach John Paddock on Wednesday before opting to take back the coaching reins.

STARS 
Dallas fans certainly liked what they saw from Brad Richards in his first game in a Stars uniform on Thursday. The crafty forward had a career-high five points, all assists, in Dallas' 7-4 win over Chicago. The last Stars player to have a five-point game was Mike Modano back in 2002. Richards' new linemate Niklas Hagman was the main beneficiary of the former's largesse, scoring his first career hat trick in the victory. Richards was obtained from Tampa Bay at the trade deadline.

THRASHERS 
Colby Armstrong and Erik Christensen did not have strong outings in their first game with Atlanta on Thursday. Thrashers coach Don Waddell opted to have the duo skate together on a line with Eric Perrin in Thursday's 5-4 overtime loss to the Islanders. The duo were a combined minus-5 in the game and will need to tighten up their play if they expect to see significant ice time down the stretch. The pair were obtained from Pittsburgh earlier this week in the deal that saw Marian Hossa land with the Penguins.