SAN FRANCISCO — The sight of Marco Scutaro on the ground in pain after getting flattened by Matt Holliday’s hard takeout was just the spark the San Francisco Giants needed.

Scutaro even got into the act with his own big blow that helped the Giants end their home slide.

Scutaro hit a two-run single in San Francisco’s four-run fourth inning before leaving with a hip injury and the Giants got their first home win this postseason, 7-1 over the St. Louis Cardinals on Monday night to tie the NL championship series at one game apiece.

“It just kind of pumps you up,” Giants outfielder Hunter Pence said. “When you see one of your guys go down, you always want to win the game, but it’s like, ‘Let’s go. Let’s put it on the scoreboard.”’

Scutaro left after the fifth because of his damaged left hip on a play Giants manager Bruce Bochy felt was illegal. X-rays were negative, and Scutaro likely will get an MRI today.