The goalie made 30 saves before falling awkwardly in his crease and was replaced by Carter Hutton at 10:28 of the third period. Ullmark is 16-14-3 with a 2.72 goals-against average, a .914 save percentage and one shutout in 33 games.
Goalie Jonas Johansson was recalled from Rochester of the American Hockey League. Johansson is third in the AHL with a 2.19 GAA and fourth with a .925 save percentage in 20 games.
The Sabres (22-21-7) trail the Carolina Hurricanes by 10 points for the second wild card into the Stanley Cup Playoffs from the Eastern Conference. They play the Montreal Canadiens in Buffalo on Thursday (7 p.m. ET; ESPN+, MSG-B, TSN2, RDS, NHL.TV).