Mets fans are hopping mad (or just feeling fatalistic, as they do) about the team’s most recent failures and injuries. First-year manager Mickey Callaway is intent on gently lifting his players off the rock bottom he says they’ve hit rather than pounding them deeper into the ground.

They watched in frustration as the Braves’ Johan Camargo hit a walkoff home run in the bottom of the ninth off rookie Gerson Bautista.

Including the win Wednesday, New York is 16-25 in its last 41 games after an 11-1 start. No wonder Callaway told reporters he hasn’t been able to sleep for a week or longer.

This week he decided to deliver a gentle wakeup call to his club rather than get in the players’ faces.

Bieber (2-0) allowed four hits and walked one in his third major league start. He jokingly dedicated the performance to shortstop Francisco Lindor, who sang along with the pregame music selected by staff ace Corey Kluber.

I was laughing because Frankie was near the mound, singing along, making fun of me, the 23-year-old said Bieber said with a smile. I thought it was him who picked it because he was enjoying it so much, but I found out it was one of the starting five.

Being able to laugh something off early kind of helps, but you still have a job to do, to go out and be serious and try to execute a game plan.

Bieber became the third Indians pitcher with six or more strikeouts in his first three big league appearances, joining Herb Score (eight in 1955) and Luis Tiant (three in 1964). His ERA is a tidy 2.45 through 18 1/3 innings.

Yonder Alonso hit a seventh-inning grand slam, and Edwin Encarnacion and Lindor also went deep for the Indians, who lead second-place Detroit by six games in the AL Central. Encarnacion finished with two hits and three RBI.