Harding, who revealed in October that he had multiple sclerosis, played in just five regular-season games, but stepped in and made 35 saves in a 2-1 overtime loss to the Blackhawks.
"For him, there's a lot of positives to take out of the game," Yeo said Friday of Harding's performance. "I think as much as anything else is the confidence of going out and playing well in a game like that. ... It's not like he hasn't played good hockey before. He's played good hockey. Hopefully, it's a statement to himself that 'I'm getting my game.' "
Backstrom participated in the team's morning skate Friday in Chicago, but at that point Yeo didn't have any more information on his status.
"He's not even off the ice yet, so I can't really answer further on that until I have a chance to talk to him and the trainers," Yeo said.
The Wild recalled goaltender Darcy Kuemper from the AHL's Houston Aeros on Wednesday. He also participated in Friday's morning skate. Yeo said defenseman Clayton Stoner will not play Friday. He played 8:18 in Game 1.
The Wild also are without forward Jason Pominville, who did not travel to Chicago. Pominville missed his fourth consecutive game after recently taking an elbow to the head.