After a slow first week of the season, Brandon Nimmo found his swing on Monday in Atlanta.

The breaking-out party started in the first at-bat of the game. In classic fashion, Nimmo worked a 3-1 count against Charlie Morton, then lined a fastball into left field for a single. It was a great sign from Nimmo, who came into Monday’s matchup batting .103.

The single, however, was only a precursor of Nimmo’s big night. The real damage began in the top of the fifth, where the Mets were trailing 4-1 and already in their depleted bullpen.

Dale Zanine-USA TODAY Sports

The stage was set for Nimmo after Morton began the inning with consecutive walks to Jeff McNeil and Joey Wendle. With his control waning, Morton tried to throw Nimmo a 1-1 changeup down in the zone. The pitch never dropped, and Nimmo drove it into the Chop House for his first homer of the season, tying the game 4-4.

The homer, which had a 111.1 exit velocity and traveled 435 feet, shifted the momentum of the game for the Mets. It gave them new life after Julio Teheran allowed four runs in 2 2/3 innings and set up the eventual comeback victory.

Following the homer in the fifth, the Mets had an answer for whatever the Braves threw at them. And Nimmo was at the center of both comebacks.

The tenacity showed in the top of the seventh. The Mets were trailing 5-4 after Travis d’Arnaud doubled in the go-ahead run in the bottom of the sixth, and Nimmo stepped up to the plate for his third at-bat. Facing lefty A.J. Minter, Nimmo connected on a 2-1 fastball, sending it 420 feet to center field to tie the game 5-5. Before the at-bat, Nimmo was 1-for-11 with two walks against Minter. The one hit was a single.

“Today was a huge game for Nimmo,” Mendoza said after the game. “A three-run homer, he went big fly there, and then against a lefty. Tough left on left and for him to dead center, that tells you how good of a player, how good of a hitter he is.”

The two homers were the peaks of Nimmo’s huge night. The lefty went 4-for-4 with two homers, a walk, and five RBIs in Monday night’s win, including an RBI single in the top of the eighth, which was the winning run.

The night at the plate was much needed for Nimmo. Before Monday, he was slashing .103/.316/.138 with one extra-base hit and zero runs scored. The massive performance on Monday was more indicative of Nimmo’s bat.

“He’s a great player,” Mendoza said about Nimmo. “At some point, these guys are going to get going.”

After his dominating night at the plate, Nimmo’s slash line is closer to a familiar territory. He’s slashing .212/.395/.424/.819 and has a 129 OPS+.

The Nimmo sparked offense also put up eight runs against the Braves, with the other three coming from a RBI single from Starling Marte in the fourth, and a two-run homer from DJ Stewart in the eighth.

The win improved the Mets record to 4-6. They’ve come a long way from their 0-5 start, which speaks to the mentality that Nimmo and the other Mets have.

“You got to show up tomorrow and try to win the next one,” Nimmo said after the game.

“That’s a really good team over there and they’re not back down just because we won tonight. Nice to kind of do to what they done to us a couple of times, but it doesn’t mean they’re gonna back down. You still gotta show up tomorrow ready to go and ready to compete.”