LOS ANGELES — These Mets are not only about bad luck in the health department, but also about bad decisions across the board that are coming back to haunt them.

The Mets announced Wednesday that another pitcher had bitten the dust when Zack Wheeler was put on the disabled list with biceps tendinitis, joining the likes of Noah Syndergaard, Matt Harvey, Jeurys Familia and so many others.

Clearly, whatever the Mets and general manager Sandy Alderson are doing as an organization when it comes to pitching health is not working — and there appears to be no end to the misery.

A staff with much potential has disappeared. But there is much more going on here than injuries.

Just think back to a couple of years ago, when the Mets ousted the Dodgers in a dramatic five-game NL Division Series.

The obvious mistake was letting Daniel Murphy escape to the archrival Nationals after his historic playoff performance that year, but there have been other mistakes as the two teams have gone in opposite directions in the standings.

Take for example this decision: In the 2012 draft, the Mets elected, with the 12th overall pick, to take a shortstop, a position at which a team cannot afford to miss in the draft. That shortstop was Gavin Cecchini. Six picks later, the Dodgers picked a shortstop. They grabbed Corey Seager, who bashed three home runs in the Dodgers’ 12-0 wipeout of the Mets on Tuesday night at Dodgers Stadium.

A year later, the Dodgers struck gold again, this time in the fourth round. With the 116th pick of the draft, the Mets went with a bloodlines pick and selected L.J. Mazzilli, son of Lee Mazzilli. Eight picks later, the Dodgers went with a major league bloodlines pick too, selecting Cody Bellinger, son of former utility man Clay Bellinger.

Bellinger is tearing up the majors with 22 home runs in only 52 games, and the Dodgers have been energized by the youth he and Seager have delivered.

Of course, if the Mets had selected both Seager and Bellinger, there is the possibility they still would be in Triple-A Las Vegas.

You can’t have too many minor league at-bats in the Mets’ world.

That’s just the way it is.

Then there was the decision to let Justin Turner go, and the Dodgers are reaping that benefit as well. Turner can play multiple positions and is a dirt-dog, the kind of gutsy player every team could use.

Hindsight always is 20-20, as the world knows, but those four decisions loom large over the Mets these days as they struggle along with a terrible 31-39 record with the halfway point to the season only 10 games away.

The great distance between the Mets and true contenders such as the Dodgers and Nationals is even greater than the distance of all the home runs Los Angeles has hit in this series. The Mets gave up nine home runs in the first two games of the series, including a 5-0 home run advantage for the Dodgers in their two-touchdown win Tuesday night.

Great pitching can hide many flaws and many flawed decisions, but once the pitching goes south, all the mistakes are out in the open to see. The Mets’ pitching has gone south and beyond. It’s hard to fathom this many injuries for a pitching staff.

There are other problems, too. The Mets don’t emphasize defense and base running under Alderson. It was interesting that they went through an early infield practice Wednesday, but there is much more work to do. Clearly they miss the guidance of infield coach Tim Teufel, who was not brought back this season as a major league coach.

It’s all about pitching and home runs, but once the injury bug struck the staff in such a devastating way, the entire house of cards collapsed.

That’s where the Mets stood going into Wednesday night’s game at Dodger Stadium, where Randy Newman’s “I Love L.A.” is a staple after each Dodgers victory.

The Mets continue to insist they are in the race though they are eight games under .500, but this is now a back-up-the-truck season.

Simply Amazin’.