SANTA CLARA, Calif. — Kirk Cousins had his share of struggles Saturday, but Mike Zimmer hasn’t changed his tune on him.

After Cousins’ impressive showing in a 26-20 overtime win over New Orleans to open the playoffs, the Vikings’ coach gave his quarterback a game ball and called him “our guy.’’

After an ugly 27-10 loss to San Francisco in a divisional playoff game Saturday at Levi’s Stadium, Zimmer was asked if he still feels the same way about Cousins. He said, “Yeah,’’

But Zimmer stopped short of speculating about whether the Vikings might offer Couisins a contract extension during the offseason.

“I don’t know what his contract situation is, so I’ll worry about that down the road,’’ Zimmer said. “Today’s not the way to discuss it.’’

Cousins has completed two of the three years on a fully guaranteed $84 million deal he signed in March 2018. If the Vikings don’t extend him, he could potentially become a free agent in March 2021.

The Vikings are in line to enter free agency with less salary-cap room than any team in the NFL. But a Cousins extension perhaps could lower his cap number for 2020, now at $31 million.

“That’s just not my focus right now,’’ Cousins said after Saturday’s game about a possible extension. “My focus is on this game and the playoffs. I certainly love it here and love being a Viking.’’

Cousins on Saturday completed 21 of 29 passes for 172 yards with a touchdown and an interception and had a passer rating of 84.3. On the ball that Richard Sherman picked off in the third quarter, Vikings wide receiver Adam Thielen said it was his fault for not finishing his route.

Cousins had a career-high passer rating of 107.4 during the regular seaso, and he was impressive in getting his first career playoff win at New Orleans. In that game, he completed 19 of 31 passes for 242 yards and a touchdown.

However, Saturday’s showing won’t help in stopping debates about Cousins not stepping up in big games. That was the case on several occasions during the regular season.

Against the 49ers, Cousins was hampered by a running game that managed just 21 yards. He was sacked six times, four in the fourth quarter when Minnesota had become one-dimensional.

“It’s a pretty good rush, so that’s probably why,’’ Zimmer said of Cousins having trouble against a four-man rush. “They didn’t need to blitz much. They’ve got good pressure with four guys. Pressure affects quarterbacks typically.’’

Cousins said the 49ers taking a big lead in the second half “made it tough” on him.

“They’ve proven that they’re a good front, a good defense and a good team,’’ Cousins said.

Cousins didn’t want to talk much about the future after the game. But he did touch upon being optimistic moving forward.