Jake Sanderson scored at 17:42 of overtime for the Ottawa Senators, who avoided elimination with a 4-3 win in Game 4 of their first-round series against the visiting Toronto Maple Leafs on Saturday.

Fresh off the bench, Sanderson kept the puck in at the left point and fired a wrist shot that beat Anthony Stolarz on the far side.

Sanderson also had an assist, and Linus Ullmark made 31 saves for the Senators, who trail the series 3-1.

John Tavares, Matthew Knies and Oliver Ekman-Larsson scored for the Maple Leafs. Stolarz made 17 saves.

David Perron put Ottawa ahead 3-2 at 7:32 of the third period. Adam Gaudette collected a rebound in the left circle and fed it to Artem Zub, who sent it to Perron on the doorstep for the tap-in.

Ekman-Larsson tied it 3-3 at 14:31. William Nylander held the puck in the left circle before spotting Ekman-Larsson uncovered in the right circle, where the defenseman snapped it under Ullmark’s left arm.

Tim Stutzle scored on the power play to give the Senators a 1-0 lead at 9:03 of the first period, taking a feed from Sanderson in the right circle for a one-timer that beat Stolarz high glove side.

Pinto doubled the Senators’ advantage with a short-handed tally at 14:11. Pinto caught up to a loose puck just inside the Toronto blue line and broke in for a wrist shot on Stolarz, who thought he had it, but the puck slipped through the five-hole to make it 2-0.

Tavares cut the deficit to 2-1 at 19:05. Nylander took a pass from Chris Tanev at the point and fired it toward the net, where Tavares, on the doorstep, tipped it blocker side past Ullmark.

Knies converted on a delayed penalty to pull the Maple Leafs even at 10:12 of the second period. Mitch Marner deflected a puck out of the Toronto zone and Knies collected it for a breakaway, getting around Zub and roofing a wrist shot into the top left corner.