Biggest name in NHL free agency would help Sabres' defenseSource: Buffalo News ‘Here’s a look at the unrestricted free agents, starting with the Sabres’ biggest need.’ Related posts: Jimmy Vesey: ‘I’m still going to go to free agency’ Sabres stay quiet as free agency opens, only ink AHL defenseman Drew Bagnall Regier, Sabres Ready for Start of Free Agency Sabres land next biggest fish Okposo as NHL free agency opens Entering free agency, Nilsson put up his best numbers in the NHL