FRANKFURT, Germany -- German prosecutors have opened a criminal investigation against WBA super middleweight champion Felix Sturm because of doping.Cologne prosecutor Daniel Vollmert says Sturm is suspected of violating Germanys new anti-doping law and could face up to three years in prison if convicted.Sturm tested positive for the anabolic steroid stanozolol after his split decision victory over Fedor Chudinov on Feb. 20 in Oberhausen, Germany. He has denied any wrongdoing, and the B sample has yet to be tested.Sturm won the fight against the previously unbeaten Chudinov on the cards of two judges, while one ruled it a draw. Many fans felt Sturm had been the inferior fighter.His victory made him the first German to be a world champion five times, having also held the WBA and WBO middleweight titles. He has moved back to his native Bosnia. Sheldrick Redwine Youth Jersey . Collaros, 25, was solid last season, posting a 5-2 record as the starter while incumbent Ricky Ray was injured. 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Thats about all he can do right now, so hes trying not to think about when he might be able to play again for the Los Angeles Lakers.With the NHLs free agency period opening Friday, teams are already making decisions on how to build their rosters for next season. Check out todays rumours and speculation from around the NHL beat, and follow TSN.ca each day for all the updates. Be sure to tune in to TSN2 and visit TSN.ca on Friday for Free Agent Frenzy, starting at Noon et/9am pt. Clowe Draws Interest LeBrun reported Thursday afternoon that New Jersey and Montreal were among several suitors for Ryane Clowe. He adds that the Habs are out of the hunt, while the Devils remain very interested in Clowe. Leafs Looking At The Market Dreger told TSN Radio 1050 that the Toronto Maple Leafs are very keen on free agent winger David Clarkson and have also expressed interest in defenceman Rob Scuderi. Dreger says Clarkson is going to get a handsome contract perhaps somewhere north of $6 million per year, but Toronto will only sign Clarkson "if the fit is right financially." Ottawa Senators GM Bryan Murray confirmed Thursday that the club has met with Clarkson. Bidding for Bozak LeBrun also reports that the Toronto Maple Leafs are still in the mix to re-signing Tyler Bozak, but the Dallas Stars, St. Louis Blues, Calgary Flames, Anaheim Ducks and Detroit Red Wings are among the other teams that have kicked the tires on the free agent centre. LeBrun suspects that Bozak is seeking a deal of five years or more. Dreger adds that Bozaks negotiation with the Maple Leafs could impact Phil Kessels future with the club as well. Dreger asked aloud on Twitter that if Bozak goes, is Kessel as eager to re-sign in Toronto? Also, look for the Dallas Stars to be a contender for his services.dddddddddddd Motor City Market LeBrun thinks that free agent centre Stephen Weiss would be the No. 1 option for Detroit going into Friday, but Bozak is in there as well. Meanwhile, the Red Wings still talking to free agent forward Valtteri Filppula. Angling For Alfie Lots of teams have reached out to long-time Ottawa Senator captain Daniel Alfredsson and while Boston has been the most aggressive of the new suitors, LeBrun reports that with so many Swedish connection, Detroit was among teams that also called. Windy City Return? Dreger reports that there is action on Chicago Blackhawks goalie Ray Emery. The Flyers, Islanders, and Oilers are believed to be chasing, while the Blackhawks are also in discussions to re-sign the 30-year-old netminder. Canucks Standing Pat? Brad Ziemer of The Vancouver Sun writes that Keith Ballards compliance buyout gives the Canucks almost $7.5 million of cap space, but they still have to fill out seven spots on their 23-man roster. Ziemer adds that defenceman Chris Tanev, a restricted free agent, could more than double last seasons $900,000 salary. That, along with getting Dale Weise locked up leaves the Canucks with about $5 million on five players. As a result, Ziemer writes that theyre not expected to pitch for names like Jarome Iginla, David Clarkson, Ryane Clowe and Nathan Horton. Visit TSN.ca for more updates as theyre made available throughout the day. ' ' '