Toronto, Ontario (My Sportsbook) - The Toronto Maple Leafs try to jump ahead to a three games to one lead tonight when they host the Philadelphia Flyers in Game 4 of their Eastern Conference quarterfinal series.

Toronto is, however, expected to be without sniper Alexander Mogilny. The Russian star scored his fifth goal of the series in Monday's 4-3 double- overtime win, but there was a scare in the second OT. After getting tangled with the Flyers' Jeremy Roenick, Mogilny was inadvertently struck under the chin by Roenick's stick. A gash was opened, and Mogilny appeared dazed as he was helped off the ice.

It was announced early Wednesday that Mogilny, apparently suffering from concussion-like symptoms, will not be available.

"He had a downturn yesterday," Toronto coach and GM Pat Quinn said. "The report wasn't where we needed to have it."

Monday's Toronto win came after the teams split the first two games in Philly, Tomas Kaberle scored two goals, including the game-winner 7:20 into the second OT. Robert Reichel and Mogilny each had a goal and an assist for the Maple Leafs, who bounced back after getting thoroughly outplayed in the second game.

"Philadelphia dominated us in the first and second games both with shots and the physical game, but [Monday] we did a better job," said Toronto captain the physical game, but [Monday] we did a better job," said Toronto captain Mats Sundin, whose wraparound attempt helped lead to Kaberle's deciding tally.

Ed Belfour made 36 saves for Toronto, which ended a three-game overtime losing streak in the playoffs. The Leafs lost three games in OT versus the Carolina Hurricanes in last season's conference finals.

Eric Weinrich, Mark Recchi and Eric Desjardins all scored for the Flyers, with Recchi forcing OT early in the third period. Roman Cechmanek was able to turn away 37 of the 41 shots he faced, including several stellar stops in the OTs.

The Flyers had a golden opportunity to win the contest in the first overtime, but defenseman Kim Johnsson fired a shot off the left post.

Toronto established itself with a dominating second period that saw the Leafs outshoot the Flyers by an 11-6 margin and score twice. Philadelphia was supposed to be the quicker team entering the series, but for the middle frame on Monday, Toronto was the faster of the two.

Philadelphia coach Ken Hitchcock said that Game 3 was a different animal than the first two that saw the Flyers carry much of the play.

"The first two games, we were the team that was initiating all over the ice,"Hitchcock said. "[In Game 3], we drew even. They initiated on us as much as we initiated on them."

Mogilny's absence is crucial, as he has helped the Leafs score four or more goals on the Flyers twice already in this series. Philadelphia, utilizing the stingy ways of Hitchcock, finished tied with New Jersey for the fewest goals-against during the regular season.

Another player who won't be on the ice tonight is forward Shayne Corson, who left the Maple Leafs Tuesday after being a healthy scratch in Game 3. Corson insisted in Toronto papers, however, that his resigning from the club had more to do with his health rather than a diminishing role on the team.

"The most important thing is my teammates. I love those guys. I think they're good enough to win and I want them to win the Cup," Corson told the Toronto Star. "But I have to start taking care of myself."

Game 5 will be played Saturday afternoon at the First Union Center in Philadelphia.