Kolosov is expected to be recalled from AHL Lehigh Valley ahead of Thursday's game in Pittsburgh, per Kevin Kurz of The Athletic.
The Flyers are in need of a goaltender after Dan Vladar (undisclosed) was injured in the opening period Wednesday versus Buffalo. Kolosov is 0-1-0 in a pair of appearances for the Flyers this season, allowing two goals on 28 shots. Kolosov was 9-9-1 with a 2.54 GAA and a .908 save percentage across 19 AHL contests this season.