Toronto Maple Leafs goalie James Reimer, left, cover the puck on Philadelphia Flyers forward Wayne Simmonds, right, during third period NHL hockey action in Toronto on Thursday, April 4, 2013. THE CANADIAN PRESS/Nathan Denette

TORONTO - Former Maple Leafs tough guy Jay Rosehill scored the winner and Ilya Bryzgalov made 25 saves Thursday as the Philadelphia Flyers defeated Toronto 5-3.

Simon Gagne, Jakub Voracek, Brayden Schenn and Luke Schenn, into an empty net, had the other goals for Philadelphia (17-17-3), which won its fourth straight game.

Sean Couturier added two assists for the Flyers.

Nikolai Kulemin, John-Michael Liles and James van Riemsdyk scored Toronto (20-13-4), which lost left-winger Joffrey Lupul in the first period to an upper-body injury after he took a hard hit.

James Reimer made 26 saves for the Maple Leafs in suffering just his fifth regulation loss, a day after Toronto management decided against bringing in a veteran goaltender at the NHL trade deadline. Dion Phaneuf chipped in with two assists.

Tied 2-2 after an eventful first period, Brayden Schenn gave the Flyers the lead just 54 seconds into the second on a terrible giveaway by Kulemin in the Toronto zone. Schenn moved into the high slot and fired a shot that squeaked through Reimer.

The Flyers carried the play for the next few minutes with Reimer holding the fort, and the Maple Leafs responded with a couple of spirited shifts that got the crowd involved, including a pair of hits from sniper Nazem Kadri.

But Philadelphia responded and stretched its lead to 4-2 at 15:53 when Couturier's shot from the point was tipped in by Rosehill, who was playing his first game with the Flyers since being acquired from the Anaheim Ducks on Monday. Reimer complained to the officials that he was interfered with, and replays suggested he had a case, but the goal stood.

Van Riemsdyk brought the Leafs closer at 6:14 of the third with his first goal in 11 games, roofing a shot from in tight on Bryzgalov for his 15th of the season.

Toronto had another couple of chances to tie the score as the period wore on, including a big push in the final minute, but couldn't get the equalizer before Luke Schenn scored into the empty net.

Of more concern for the Maple Leafs than the end of their three-game winning streak and eight-game point streak (5-0-3) is the status of the red-hot Lupul, who appeared to take a blow to the head after being sandwiched by Rosehill and Philadelphia's Adam Hall.

Lupul, who assisted on the first Toronto goal, has eight goals and six assists since returning from a broken forearm on March 16. He got back to his feet after the hit as play continued but was wobbly and had to be helped onto the bench. Lupul left for the locker-room a short time later and did not return.

Gagne opened the scoring on a nice deflection past Reimer just 1:19 into a physical first period before Kulemin tied things up at 3:22, banging home a loose puck past Bryzgalov.

After the hit on Lupul, Rosehill dropped the gloves with Toronto tough guy Colton Orr on his next shift.

Toronto went ahead at 16:46 on a shot from the point from Liles that found its way past Bryzgalov thanks to a Frazer McClaren screen.

That lead was short-lived as Couturier found Voracek on a great pass and he swept the puck past a helpless Reimer for his 16th goal of the season.

Notes: The Flyers acquired former Calder Trophy winning goalie Steve Mason from the Columbus Blue Jackets prior to Wednesday's trade deadline for backup goaltender Michael Leighton and a third-round pick in the 2015 draft. Mason wore No. 35 for Philadelphia ... Bryzgalov has played in 35 of 37 games this season. ... Maple Leafs defenceman Ryan O'Byrne, acquired from the Colorado Avalanche on Wednesday, arrived in Toronto in time for the pre-game warmup but did not dress. ... The Flyers are in Winnipeg to take on the Jets on Saturday, while the Maple Leafs visit the New Jersey Devils. ... Attendance at Air Canada Centre was 19,619.

News from © The Canadian Press, 2013