San Jose regained the lead after pouncing on a Ducks turnover along the bench. As Montour carried the puck up the ice, he lost his balance, allowing the Sharks to transition the other way on a 2-on-1. Joonas Donskoi buried the odd-man rush for his first goal of the series just 1:15 into the second period.
The Sharks made it 3-1 just minutes later on another odd-man rush, this time coming from Marcus Sorensen. The goal game at the 3:41 mark of the middle frame.
Veteran center Eric Fehr made it 4-1 with 6:17 remaining in the second period when he carried the puck into the zone and finished off an impressive individual sequence.
San Jose made it 5-1 on another power-play goal, this time from Tomas Hertl at the 16:49 mark of the second period.
"Couple two-on-ones and the game is 3-1," defenseman Francois Beauchemin said to reporters after the game. "We were right in the game and they ended up scoring a fourth one and fifth one. We just couldn't stop the bleeding in the second. We talked about it after the first period that their second period so far this series has been their biggest one. We just couldn't stop the bleeding in the second."
Joe Pavelski gave the Sharks their sixth goal of the game, again on the power play, midway through the third period. The Ducks were at the tail end of a four-minute penalty kill after Getzlaf committed slashing and roughing infractions in the same sequence. (Getzlaf would later receive a 10-minute misconduct at the 11:12 mark of the third period).
Evander Kane scored late in the third period to make it 7-1, his third goal of the series.
Chris Tierney made it 8-1 with 23.2 seconds left on the clock with a power-play goal, San Jose's sixth PPG in the series.
"You dwell on it tonight," defenseman Josh Manson said to reporters. "We know what happened. It's embarrassing. It's not good enough. Now it's do or die. If you dwell on a game like this, it gets you nowhere."
Game 4 will take place on Wednesday night at SAP Center, with puck drop shortly after 7:30 p.m.