Kolosov (lower body) will serve as the No. 2 option versus Ottawa on Thursday behind Ivan Fedotov, Jordan Hall of NBC Sports Philadelphia reports.
Kolosov (lower body) participated in Monday's practice but stayed out late with the expected scratches, Jordan Hall of NBC Sports Philadelphia reports.
Kolosov (lower body) won't be in the lineup for Saturday's road matchup versus Florida.
Kolosov, who was initially announced as the starter for Thursday's road tilt against Tampa Bay, will miss the game due to a lower-body injury and is considered day-to-day beyond that.
Kolosov, who was announced by the Flyers as the starter against Tampa Bay on Thursday, appears to have suffered an undisclosed injury during the game-day skate, per Elliotte Friedman of Sportsnet.
Kolosov will serve as the starting goaltender for Thursday's road game against Tampa Bay.
Kolosov turned aside 29 of 34 shots in Tuesday's 6-4 loss to Carolina, with the Hurricanes' final goal getting scored into an empty net.
Kolosov will defend the road net Tuesday against Carolina, per Charlie O'Connor of PHLY Sports.
Kolosov took the loss in Saturday's 3-0 defeat at the hands of the Bruins, stopping 20 of 22 shots after replacing Samuel Ersson (lower body) midway through the first period.
Kolosov will patrol the home crease Sunday versus Montreal, Charlie O'Connor of PHLY Sports reports.