Ben Affleck & Jennifer Garner’s Brutal Brawl After Son’s Basketball Game

Ben Affleck appears to have reached his booze-fueled boiling point with estranged wife Jennifer Garner after a full-scale brawl between the two broke out in a Los Angeles park after their son Samuel’s basketball game!

Shocking photos obtained by The National ENQUIRER show the separated stars erupting in a fiery argument on Feb. 4 over Jen’s frustrations with Ben’s wild lifestyle! “Jen’s furious with Ben’s infantile behavior and demanded he quit boozing and biking,” an insider told The ENQUIRER.

“She doesn’t want her kids to grow up without a dad!” The shouting match comes just two weeks after the bloated “Batman” star — who has been in and out of rehab, most recently in December — suffered a terrifying motorcycle accident that could have caused brain damage.

As The ENQUIRER reported, Ben wrecked his new bike — billed the world’s fastest motorcycle — on his way to church. The troubled actor hit his head against a curb after crashing his 194-horsepower Suzuki Hayabusa, which retails for nearly $20,000 — yet somehow hobbled away from the accident.

“Jen thinks he’s being incredibly childish and selfish,” the source said. “She believes he needs to start acting more like a dad and less like a kid!” Spies on the scene at the Barrington Recreation Center after Samuel’s game said Jen's fury wasn’t restrained by the public setting.

“Jen emptied out on Ben, and he seemed to be on the defensive,” according to our spy. “She only seemed to calm down when Samuel got close to them.” Jen and Ben stopped fighting, bought Samuel an ice cream cone, walked with their heads down in silence to the parking lot and then went their separate ways.

The latest blowup comes as no surprise to sources close to the couple, also parents to preteens Violet and Seraphina.

They’ve seen Jen suffer through Ben’s affair with their kids’ nanny, Christine Ouzounian, in 2015; his public apology to actress Hilarie Burton, who accused him of groping her; and his hard-partying affair with “Saturday Night Live” producer Lindsay Shookus (right)!

“Jen’s fed up with Ben’s behavior — especially since they agreed to divorce,” a pal snitched. “She doesn’t like Lindsay and says she’s a bad influence on him.” Added our source: “She’s told him to clean up his act — or stay away from the kids!”