Liam Reddox has two assists in nine games for the Oilers.

A day after the Edmonton lost Ales Hemsky to an upper-body injury, the Oilers recalled centre Ryan O'Marra and right winger Colin McDonald from Springfield of the American Hockey League. Left-winger Liam Reddox was loaned to Springfield.

Hemsky, who left Wednesday's 3-1 loss to the Los Angeles Kings in after a second-period hit from behind by Michal Handzus, was due to have to have an MRI on Thursday.

O’Marra, 22, has five goals and three assists in 21 games this year. Last season he had 10 points (1G, 9A) with 49 PIM. The 6-foot-2, 207-pound centre was recalled earlier this month and appeared in one game with the Oilers before being reassigned.

McDonald, 25, has five goals and four assists in 21 games this season. The Hartford native is in his third year with the Falcons after having played four seasons with Providence College of the NCAA. He will be playing in his first career NHL game.

Reddox, who was recalled on November 7, has played in nine games this season recording two assists.