Jason Zucker shared with Charlie Coyle on Thursday morning stories from last season when Zucker suffered two concussions.

The Wild's young forwards were talking about Zucker -- but their conversation was spurred by news that their friend and the Wild's second-line center Mikael Granlund was placed on injured reserve, meaning he's out at least seven days and three games.

Granlund returned from an upper body injury Wednesday after missing two games, but his return lasted just 29 seconds. He was injured on a hit on his first shift of the game and exited with an apparent concussion.

"I feel horrible for him," Zucker said. "It's a battle, and I hope he gets better soon and can figure it out quickly, because that's not something anyone wants to see happen to anybody."

Coach Mike Yeo termed it an upper body injury but said it has been nagging for at least the past three games.

Granlund was cleared to play Wednesday for the first time in a week, but it came with a warning.

"He was cleared to play with the idea that we wanted to be careful and think about the big picture," Yeo said. "Sometimes things happen."

Yeo didn't want to look ahead to next week, when Granlund will be eligible to come off injured reserve.

He said the team has been looking daily for too long at whether Granlund would play, so now they want to give him some time off.

"Could I sit here in hindsight and wish he didn't play? Of course," Yeo said. "But when a guy is cleared to play, what are you going to do? Are you going to say no?"

Out of training camp, Charlie Coyle had won the second-line center job, but after he was injured in the second game of the season, Granlund had taken control of the position with Coyle moving to right wing on the top line upon his return.

Coyle blossomed there with linemates Mikko Koivu and Zach Parise.