"Brian Elliott had successful core muscle surgery this morning," general manager Ron Hextall said Tuesday.
The 32-year-old was injured Saturday against the Coyotes. He played through regulation and overtime and even faced two skaters in the shootout before leaving.
The Flyers are a surprising third in the Metropolitan Division, and sixth in the Eastern Conference despite a 10-game losing streak earlier in the season. Since that streak ended, Elliott is 15-5-1 with a 2.51 goals-against average and .912 save percentage.
In 41 games this season, Elliott has posted a 21-11-7 mark with a 2.72 goals-against average and .908 save percentage.
Hextall was noncommittal as to whether he would pursue a replacement for Elliott before the Feb. 26 trade deadline.
Information from The Associated Press was used in this report.