Sabres sign goalie prospect Ullmark to 3-year dealSource: AP ‘Ullmark is expected to spend this season developing with the Sabres’ American Hockey League affiliate in Rochester.’ Related posts: Nick Tarnasky, T.J. Brennan sign one-year deals with Sabres Sabres ink Persson to three-year deal Sabres sign prospect D Generous to 1-year deal Sabres sign prospect D MacKenzie to 3-year deal Buffalo Sabres re-sign starting goalie Ryan Miller to 3-year deal