Allen appeared to be injured late in the first period of Saturday's final preseason game when Blackhawks forward Richard Panik tripped Blues defenseman Carl Gunnarsson, who fell onto the Blues goaltender. After being attended to by trainer Ray Barile, Allen remained in the game for the rest of the period but did not return for the second and third.
"I didn't feel comfortable and didn't feel very good at the time, but a couple days off was nice just to get back to 100 percent and ready to go," Allen said after Tuesday's practice. "I knew in the back of my mind that I should be good to go on Wednesday. It was just doing the proper steps to be ready."
Last season, Allen went 26-15-3 with a 2.35 goals-against average, a .920 save-percentage and six shutouts in 47 games.
"He's the designated starter, so let's get playing," Blues Head Coach Ken Hitchcock said. "A lot of those guys play 50, 60, 70 games. There's no reason Jake can't take on a big load here."
With Allen good to go, the club assigned goaltender Jordan Binnington to their American Hockey League affiliate, the Chicago Wolves.
