Buffalo's Rivet has surgerySource: The Sports Network ‘The 34-year-old Rivet, who is expected to be sidelined for a minimum of two weeks, has recorded three assists in six games for Buffalo this season.’ Related posts: Craig Rivet has knee surgery Sabres’ Connolly to have season-ending surgery Gaustad has surgery on thumb Canucks acquire Pyatt from Sabres Sabres sign C Zagrapan