NHL Notebook: Senators’ Tkachuk out after surgery, Red Wings defencemen could be moved, and Wolf struggles for Flames OilersNationTkachuk out 6-8 weeks for Senators after thumb surgery NHL.comSenators’ Tkachuk out 6-8 weeks after surgery ESPNBrady Tkachuk’s injury creates big early test for Senators Sportsnet.caSenators’ Tkachuk out 6-8 weeks after right thumb surgery CBC
