Allen will be making his first start at home since Oct. 19 and just his fifth start at Enterprise Center in the entire calendar year of 2019.
On the road this season, Allen is 5-1-2 with a 2.21 goals-against average (seventh in the NHL) and a .932 save-percentage (fifth in the NHL). He has a 1.96 goals-against average and a .941 save-percentage in his last seven starts overall.
The Blues held an optional skate on Wednesday morning, so the projected lineup for the game against the Oilers is based on Tuesday's team practice. Oskar Sundqvist and Alexander Steen are expected to swap places, which means Sundqvist would play with Ryan O'Reilly and David Perron, while Steen plays with Robert Thomas and Zach Sanford.