Ullmark (6'4", 221 lbs., 7/31/1993) joins the team for his seventh recall of the 2016-17 season. Through 53 games in his second AHL season, Buffalo's sixth-round pick (163rd overall) in the 2012 NHL Draft is 25-26-2 with a .909 save percentage and leads the league with 1,464 saves.
The Lugnvik, Sweden native played 20 games for the Sabres as a rookie during the 2015-16 season, posting a .913 save percentage and a 2.60 goals-against average, but has not yet appeared in an NHL game this season. His 8-10-2 record in 2015-16 included wins in each of his last three NHL appearances.