Knight will patrol the road crease in St. Louis on Thursday.
Knight is 4-2-0 in his last seven appearances with a 1.71 GAA and a .940 save percentage as he is starting to take away starts from the 36-year-old Sergei Bobrovsky in the Florida net. Knight is 10-8-1 with a 2.49 GAA and a .906 save percentage in 21 games this season. The Blues are generating 2.67 goals per game, 27th in the NHL this season.