The Blues (49-16-7) enter play Thursday one point ahead of the Boston Bruins in the race for the Presidents' Trophy.
"The line that we're playing together [Thursday] with Roy on it has played three times together before [Thursday], and all three games they've played really well together," Blues coach Ken Hitchcock said. "It's three veteran guys that know how to read off each other. Obviously Ott takes a lot of the faceoffs and ends up down low in our zone.
"I want to see [the line] play consistently well before we evaluate whether we're going to stay with it or not. I'm not 100-percent sure yet. They've shown flashes where they play really well together and then for whatever reason, mostly through injuries or whatever, it's mostly gotten broken up or we've needed help somewhere else."
The Wild (37-25-11), who lost 5-2 at home to the Vancouver Canucks on Wednesday, have won three times in the past 11 games (3-4-4) as they continue to hang onto one of two Western Conference wild-card spots in the Stanley Cup Playoffs.
It was a limited optional skate Thursday for Minnesota. Goaltender Darcy Kuemper is slated to start against the Blues after he allowed three goals on 12 shots Wednesday. He was first off the ice following the morning skate. Kuemper is 1-4-2 in his past seven games after winning five straight starts.
The projected lineups for the Wild and the Blues:
Injured: Vladimir Tarasenko (thumb)