Ottawa Senators goaltender Andrew Hammond sustained an undisclosed injury during practice Sunday and goalie Matthew O'Connor has been recalled on an emergency basis.

Hammond is 2-0-2 with a 2.42 goals-against average and .930 save percentage in four games. He made 33 saves in a 3-2 win Thursday against the Vancouver Canucks. A groin injury sidelined Hammond for the first six games of the season.

O'Connor, who signed with the Senators as a free agent on May 9, made 31 saves in a 3-1 loss to the Montreal Canadiens on Oct. 11.