"You're playing for the Stanley Cup here," Couture told Sportsnet's Iain MacIntyre. "We've never won it, I've never won it and it's something I want to do for this team and this city. I'm definitely proud of being able to contribute and help this team win. But until we win the Stanley Cup, I won't be satisfied."
Couture's registered 13 goals and 19 points so far this postseason, pacing his peers by four in each category. His latest stellar performance came in Game 2 against the St. Louis Blues, when he notched two goals in just under two minutes to tie the game.
Despite his efforts, the Sharks eventually lost the contest and now head to St. Louis tied 1-1 in the Western Conference Final. It's that fact, not his personal performance, that stands out for Couture.
"In my opinion, that wasn't anywhere near what we're capable of, and I don't think we've played up to our capabilities for a while now," Couture told NHL.com's Nick Cotsonika. "We did just enough to beat the Avalanche, but we haven't played our best hockey since that Vegas series.
"And it's discouraging, it's frustrating because we're going to need everyone here if we're going to beat these guys because they're a very good hockey team."
The Sharks return to action Wednesday night at 8:00 p.m. ET.