Addled former Mets ace Dwight Gooden was arrested Monday night for driving under the influence after heading the wrong way down a one-way street in Newark, NJ — just weeks after another DUI bust involving cocaine, sources told The Post.

The legendary ex-pitcher known as “Doc” — who has been in and out of rehab for years for drug and alcohol addiction — was a mess when he was picked up on Vincent Street near Ferry Street in the Ironbound section around 11:10 p.m., sources said.

“He pissed himself. He was clearly buzzed, really kind of f–ked up,” said an Essex County law enforcement source.

Still, Gooden, who lives in Piscataway, “was cooperative and polite,” the source said.

The source added that Gooden told cops at the scene that he was diabetic. It’s unclear if he actually is, although his late father was diabetic.

Gooden’s car, a four-door black Chrysler, was towed after his arrest, and he was taken to University Hospital in Newark, sources said. A hospital operator said the medical center had no patients by that name Tuesday afternoon.

The incident was only the latest sad turn for the 1985 National League Cy Young Award winner, who led the Mets to their most recent World Series championship in 1986.

While battling his drug and alcohol addictions, Gooden, 54, has had numerous brushes with the law along the way, including in 2010, when he crashed his car in Franklin Lakes, NJ, while under the influence — and driving his then-5-year-old son, Dylan, to school.

Gooden’s most recent previous bout with law enforcement occurred June 7, when he was nabbed by Holmdel, NJ, cops for allegedly driving erratically. Officers later found two small baggies in his car containing suspected cocaine.

The former pitching great’s trials with substance abuse thwarted his Hall of Fame dreams, which had been fueled by such stellar moments on the field as his no-hitter in 1996 while with the Yankees.

According to the website Celebrity Net Worth, Gooden has $200,000 to his name.