Blackhawks goalie Ward sidelined by right knee injury
Ward was in net for a loss at San Jose on Sunday. He is 14-11-4 with a 3.72 goals-against average and .893 save percentage in 30 games.
The Blackhawks — 12th in the Western Conference with 63 points — host Buffalo on Thursday.
Chicago recalled goalie Collin Delia from the Rockford IceHogs of the American Hockey League on Tuesday. The 24-year-old rookie has made 15 appearances with Chicago and agreed last month to a contract extension through 2021-22.
Two-time All-Star and Stanley Cup champion goalie Corey Crawford recently returned after being sidelined since mid-December because of a concussion.