Mets fans were still disappointed with first baseman Carlos Delgado even after he broke out of his 3-for-34 slump yesterday. Their only regret this time was he didn’t come out of the dugout for a curtain call following his second home run.

Delgado had his first two-homer game in nearly a year — and first homer since April 8 — in a 6–3 win over Atlanta.

For the Braves, fortunes reversed in the other direction, from sizzling to struggling: Starter John Smoltz had his first shaky outing of the season and later complained of discomfort in his throwing shoulder.

After losing five of six, the Mets beat Tim Hudson and Smoltz on back-to-back days. They did it behind some unlikely contributions, with the beleaguered bullpen protecting a lead and backup catcher Raul Casanova getting three hits. Booed during pregame introductions, Delgado went 2-for-2 with two walks. He hit one solo homer in the third inning and another in the seventh. The second one was hit so far he was pumping his fist before it cleared the fence. “The way I look at is I hit a solo home run in the seventh inning,” Delgado said. “I’ve got a great deal of respect for the game. I don’t think that’s a place for a curtain call.”

He said he has come out of the dugout only twice in his career: for his four-homer game in 2003, and his 400th home run in ’06.

“Having said that, I’m not going to lie that I feel good,” he added. “It’s a lot better than the boos.”

Smoltz (3–2) had allowed just two runs in four games. He gave up more than that in the first 1 1-3 innings yesterday.

Smoltz surrendered four hits and seven runs in his four innings, but the shoulder was the reason he left the game, he said. Smoltz described his problem as “discomfort,” which prevented him from delivering pitches the way he wanted. He was vague about what will happen next.

“The next couple of days I should know what paths we’re looking at,” Smoltz said.

The odds didn’t exactly favor a home run in Smoltz’s second-inning matchup with Casanova, who has been pressed into action with Brian Schneider hospitalized with an infected thumb. Smoltz hadn’t allowed a homer in more than 24 innings this season. Casanova hadn’t homered since July 25, when he was playing for Tampa.

He snapped both those streaks with a two-run shot that put the Mets up 3–0.

Mets starter Nelson Figueroa cruised through the first five innings. Billy Wagner finished for his sixth save.