ST. LOUIS — Kolten Wong ended Game 2 of the NL Championship Series with a big swing for the St. Louis Cardinals.

Now, they can only hope the season isn’t over for Yadier Molina.

Wong hit a leadoff home run in the bottom of the ninth inning and the resilient Cardinals beat the San Francisco Giants 5-4 Sunday night, tying the best-of-seven series at one game apiece with their latest postseason power show.

The Cardinals came back after losing Molina to a strained oblique muscle in the sixth. The All-Star catcher was getting further tests and manager Mike Matheny said it “didn’t look real good.”

“We’ll wait and see and right now we’ll just go ahead and keep celebrating a very tough, hard-fought win. I am real proud at how these guys kept coming,” Matheny said.

St. Louis didn’t stay down too long, getting a home run each of the final three innings in a back-and-forth game.

The series resumes Tuesday night in San Francisco with John Lackey going for St. Louis and Tim Hudson starting for the Giants.

“It was tough to see our backstop go down like that,” Matt Adams said. “We just kept grinding it the rest of the game.”

Rookie pinch-hitter Oscar Taveras connected in the seventh to tie it, and Adams homered in the eighth for a 4-3 lead. San Francisco tied it in the ninth on a wild pitch by closer Trevor Rosenthal.

St. Louis was last in the NL with 105 home runs during the regular season.