The Islanders thought they tied the game 38 seconds into the second period when Adam Pelech scored, but the Maple Leafs used a coach's challenge for offside, and the call on the ice was overturned after video review.
Toronto appeared to take a two-goal lead at 3:58 when Matthew Knies scored, but New York used a coach's challenge for goalie interference, and the call on the ice was overturned.
"We have iPads on the bench so we kind of know what the call is going to be, and I think there's not many things more deflating when you score a goal and the other team goes and challenges right away," Lorentz said.
Pageau tied it 1-1 at 11:59 of the second period when he one-timed a pass from Dobson below the left hash marks.
Lorentz put the Maple Leafs up 2-1 just 16 seconds later at 12:15.
"Big goal, obviously," defenseman Morgan Rielly said. "Great shot. He plays hard, does all the right things. Plays within structure, plays physical. He's committed, so you want guys like him on your team."
Woll stopped Nelson on a short-handed breakaway with 3:51 remaining in the third period to preserve the lead.
"I think Rielly did a good job disrupting [Nelson] a bit, and it allowed me to do my job," Woll said.
Tavares scored an empty-net goal on the power play with 37 seconds left for the 3-1 final. The Islanders opted to take the defensive zone face-off without Sorokin on the ice in favor of an extra skater to bring it to 5-on-5, but they lost the face-off and never got the puck out before Tavares scored.
"If they win the draw, we don't touch the puck and it's game over," Roy said. "If we win the draw, we could ice it and then play 5-on-5 in their zone. I had 40 seconds left in the game, that's the best chance to create some offense. I put it all in."
Berube called a timeout prior to the face-off but was not expecting an offensive zone face-off without Sorokin on the ice.
"I didn't think they'd pull their goalie," Berube said. "... I think it's the first time that I've ever seen that (in a situation like that)."
NOTES: Toronto captain Auston Matthews missed his fifth straight game with an upper-body injury. ... Tavares extended his point streak to eight games (seven goals, six assists). … Dobson's assist was his 166th, moving into a tie with Jeff Norton for seventh on the Islanders' all-time list among defensemen. ... Nylander's two assists gave him 331 in his career, moving him past Ted Kennedy for 10th place on the Maple Leafs all-time assists list.