Gardiner back in the lineup for Leafs

The Toronto Maple Leafs have activated defenseman Jake Gardiner from injured reserve and will have him in the lineup Wednesday when they play the Pittsburgh Penguins at Consol Energy Center.

Gardiner hasn't played since sustaining a concussion during a game Dec. 8 while playing for the Leafs' American Hockey League team, the Toronto Marlies. In 22 AHL games, he had nine goals and eight assists.

The 6-foot-2, 184-pound blueliner had 30 points in 75 games as a rookie with the Maple Leafs last season.

The move likely means defenseman Korbinian Holzer will be sent to the AHL.