TORONTO -- Forward Leo Komarov has been placed on injured reserve by the Toronto Maple Leafs with an upper-body injury.

"He is unavailable to our hockey club for a minimum of one week," coach Randy Carlyle said. "We are looking at it probably 7-10 days."

TORONTO -- The Toronto Maple Leafs placed defenseman Mike Komisarek on waivers Wednesday.

Komisarek had a no-movement clause in his contract and had to waive it to allow the move. Komisarek would report to the Toronto Marlies of the American Hockey League if he is not claimed by another team.

The 31-year-old was on the ice for the morning skate but was not available for comment.

Komisarek has no points and a plus-2 rating in four games this season. He last played Feb. 2, and has been a healthy scratch in 21 straight games.

Tampa Bay Lightning coach Guy Boucher said forward Ryan Malone is out indefinitely with a left-shoulder injury. Malone was hurt March 18 in a game against the Philadelphia Flyers.

Forward Benoit Pouliot is "on the verge" of a return, according Boucher. The left wing, who is recovering from an upper-body injury, was on the ice for the morning skate with a red jersey.

Here is how the Lightning and Maple Leafs could line up when they meet Wednesday:

TORONTO -- Looking to add a spark to the defense corps, Toronto Maple Leafs coach Randy Carlyle will dress offensive-minded John-Michael Liles for the first time since Feb. 16.

Liles, who has been a healthy scratch for the previous 12 games, said he has watched video and heeded advice from Carlyle on what he needs to improve.

"It's a learning process regardless of if you are playing or not playing," Liles said. "By not playing, I was able to maybe scrutinize the film a little bit more than normal. It's just a matter of always trying to reevaluate and always trying to improve."

TORONTO -- The Ottawa Senators will get a much-needed boost when they face the Toronto Maple Leafs on Wednesday as Milan Michalek returns to the lineup after a 10-game absence. Michalek injured his knee in the pre-game warm-ups prior to a game against the Pittsburgh Penguins on Feb. 13.

"It's been a while; I'm really excited," Michalek said. "It took me a few weeks, I was rehabbing, but now [my knee] feels good. Hopefully I can provide some offense that has been missing. I'm going to try not to put too much pressure on [myself].

The Senators have struggled offensively this season, entering Wednesday 29th with 2.13 goals per game.

"Milan brings a veteran presence and experience that we definitely need," Senators captain Daniel Alfredsson said. "His speed and offensive ability is going to help us, give us more offensive depth. That is a great addition."

TORONTO -- Here are the projected lineups for a game Wednesday night between the Toronto Maple Leafs and Ottawa Senators at Air Canada Centre:

SENATORS

Milan Michalek - Kyle Turris - Daniel Alfredsson

Colin Greening - Zack Smith - Chris Neil

Dave Dziurzynski - Mika Zibanejad - Erik Condra

Mark Stone - Peter Regin - Jakob Silfverberg

Patrick Wiercioch - Sergei Gonchar

Eric Gryba - Marc Methot

Chris Phillips - Andre Benoit

Ben Bishop

Robin Lehner

Injured: Craig Anderson, Jason Spezza, Erik Karlsson

Scratched: Jim O'Brien, Kaspars Daugavins

TORONTO -- Whether forward Matt Frattin returns to the Toronto Maple Leafs lineup will be a game-time decision according to senior vice-president and general manager Dave Nonis. Frattin has not played since Feb. 11 because of a knee injury, but was on the ice at the morning skate.

If he does play, he is expected to skate on a line with Nazem Kadri and Clarke MacArthur. Kadri, coming off his first career hat trick, is excited at the prospect of reuniting with Frattin.

"I can't wait, I've been waiting for him to come back since he went down," Kadri said. "He is a good player and obviously we have some chemistry together and hopefully we pick up where we left off."

In the event Frattin is unable to play, it is likely that Jay McClement will be inserted on the wing and David Steckel will center the fourth line between Colton Orr and Frazer McLaren.

Newly acquired Montreal Canadiens forward Michael Ryder will play against the Toronto Maple Leafs on Wednesday but coach Michel Therrien would not say where the 32-year-old would be slotted in the lineup.

The Canadiens had 15 skaters plus their two goalies on the ice at the morning skate and did not skate in line rushes. Carey Price likely will get the start in goal.

The Maple Leafs activated goaltender James Reimer from injured reserve and sent Jussi Rynnas back to the Toronto Marlies of the American Hockey League. Ben Scrivens will start and Reimer will serve as the backup.

TORONTO -- The Buffalo Sabres did not skate in line rushes Thursday morning. However, new coach Ron Rolston said defensemen Jordan Leopold (upper-body injury) and Andrej Sekera (lower-body injury) and forward Mikhail Grigorenko will not play against the Toronto Maple Leafs.

Here are the projected line combinations:

Toronto Maple Leafs forward Colton Orr took part in the morning skate but was ruled out of action against the Buffalo Sabres on Thursday because of a lower-body injury. Because of the injury to Orr, it is expected that David Steckel will center the fourth line. It will be the first time Steckel has played since Feb, 14.

Goaltender James Reimer was also on the ice briefly before he left for the dressing room. Reimer injured his knee against the Philadelphia Flyers on Feb. 11, but is inching closer to returning.

Here is the Maple Leafs' projected lineup for Thursday's game:

James Van Riemsdyk – Tyler Bozak – Phil Kessel

Leo Komarov – Mikhail Grabovski – Nikolai Kulemin

Jay McClement – Nazem Kadri – Clarke MacArthur

Frazer McLaren – David Steckel – Mike Brown

Dion Phaneuf – Korbinian Holzer

Carl Gunnarsson – Michael Kostka

Cody Franson – Mark Fraser

Ben Scrivens

Jussi Rynnas

Scratches: John-Michael Liles – Mike Komisarek

Injured: Colton Orr – Joffrey Lupul – James Reimer

The injury-riddled Ottawa Senators could welcome back two players early next week.

Coach Paul MacLean stated that forwards Peter Regin and Milan Michalek might return to the lineup on Monday.

Regin has missed two games with an injury to his chest while Michalek has missed one game with a knee injury.

With Jason Spezza out indefinitely after having back surgery and the devastating loss of dynamic defenseman Erik Karlsson to a lacerated Achilles tendon, times are certainly tough in Ottawa.

But alternate captain Chris Phillips feels that the best thing for his team to do is avoid dwelling on the situation.

“Our team is a lot better with those guys in the lineup. For us right now, the biggest thing is to not be thinking about that,” Phillips said. “[We have to be] confident in this group, in our ability and in the guys we have in to replace them. As a group, we all have to pick it up and try to fill those roles.”