ST. LOUIS — Clay Holmes’ chances of finishing six innings appeared slim early on, but then he got rolling Friday.

The pitcher faced some difficulties at the beginning of the game, giving up three earned runs. However, he managed to retire 10 out of 11 batters afterward, finishing the game strong as the Mets won 9-3 against the Cardinals at Busch Stadium.

“It’s a team that puts the ball in play a lot,” Holmes said. “I am a contact guy, so it really just helped me trust the defense and let them work.”

It marked the second time this season the former reliever managed to work through six innings (also previously against the Cardinals). Only compounding the task, Holmes was struck in the ankle by an Alec Burleson line drive in the second inning.

Holmes had a rough third inning, in which he surrendered four singles that allowed the Cardinals to go ahead 3-2.

But only Willson Contreras’ single in the sixth stood between Holmes and perfection for the remainder of his outing.

“I think the offense took the pressure off me,” Holmes said, referring to the Mets’ four-run fifth inning. “Them responding the way they did.”

It was a rare double play for the Mets in the National League’s monthly awards voting.

Pete Alonso, who went 2-for-5 with a two run homer in Friday’s win, was named NL Player of the Month on Friday for March/April, with Luisangel Acuña selected as the NL Rookie of the Month for the same time frame.

Alonso earned his recognition after posting a 1.131 OPS over 31 games that included seven homers and 28 RBIs.

Eduardo Escobar (September/October 2022) was the last Mets player before Alonso recognized with the monthly honor.

Acuña became the first Mets player recognized as Rookie of the Month since Francisco Alvarez (July 2023) after posting a .698 OPS in his first 27 games that included a .342 on-base percentage and seven stolen bases.

With Blade Tidwell scheduled for Sunday’s start — it will be his major league debut — manager Carlos Mendoza was asked about top pitching prospect Brandon Sproat’s progress at Triple-A Syracuse.

“A little inconsistent — maybe an inning gets away from him,” Mendoza said of Sproat, who has pitched to a 5.48 ERA in six starts for Syracuse. “But the stuff is still there. That’s part of the development — finding a way to get through starts, maybe it’s the second time through the lineup or the third time through.”

A.J. Minter is nearing a decision, according to Mendoza, on which path he will take for the lat strain that landed him on the injured list this week.

The lefty reliever’s options include season-ending surgery.

Danny Young is seeking a second opinion on his left elbow, which was diagnosed with a strain this week. Young is facing possible Tommy John surgery.