Jack Campbell replaced Petr Mrazek for the third period against the Ottawa Senators Thursday night after the Toronto Maple Leafs goalie suffered a groin injury in the second period. 

Head coach Sheldon Keefe did not have an update on Mrazek following the 3-2 loss in the nation's capital. 

The 29-year-old Mrazek, who signed a three-year contract with the Maple Leafs this summer, allowed three goals on 23 shots in his first regular season start with his new team. 

A native of Czech Republic, Mrazek posted a 6-2-3 record with a 2.06 goals-against average and a 0.923 save percentage over 12 games with the Carolina Hurricanes last season, his ninth in the NHL.