What in the ENTIRE hell is going on in Cali?!  Matt Barnes is caught up in some drama involving yet another Hollywood chick.  This time, once again, it's his estranged wife Gloria Govan.  The Grizzlies baller is fighting his former teammate over her!  But it gets worse.  Deets inside....

Not sure if Matt Barnes encountered some bath salts or bad weed...or if this is just the type of foolish ish he does sober....but we just can't.

Matt apparently drove 95 miles while EXTRA HEATED in order to meet up with his ex Laker teammate Derek Fisher (they played for L.A. together for a few years).  Why?  Because Derek was at Matt's ex wife Gloria's house (which is also the home she formerly shared with Matt)...and Matt wasn't having it.

Apparently, before the ink was even dry on the NY Knicks head coach's divorce papers, he started dating Gloria.  Not just dating, but getting quite close.  And getting pretty chummy with Matt and Gloria's twin boys too.  When Matt found out on Saturday, thanks to a call from his sons saying Derek was at their home at a party, all hell broke loose.

Page Six reports:

Knicks coach Derek Fisher was attacked in Los Angeles by NBA bad-boy Matt Barnes, who drive 95 miles to “beat the s—t out of him” when he found out the Garden play-caller was romancing his estranged wife, sources told The Post Wednesday.

The 6-foot-7 Barnes, who now plays for the Memphis Grizzlies, made a fast break from his team’s California training camp Saturday when he got tipped off that Fisher was making time with his ex, sultry “Basketball Wives LA” star Gloria Govan, in the home he once shared with her.

Chile...

And then there's this:

“Barnes went crazy. He got in his car and went to the house and went after Fisher,” one source said.

“Matt then drove down there to beat the s— out of him,” the source said.

A fight erupted between the 235-pound Barnes and Fisher, who weighs in at 200 pounds.

Cops were called to the scene, but Fisher, 41, left before the law arrived and won’t be pressing charges, sources said.

Oh, but there's more.  Matt texted his homies what he had just done.  Y'all know he's a hot head, so he likely wanted EVERYBODY to know that he just whooped Derek's ass and spit on Gloria...allegedly.

Following the dust-up, Barnes, 35, texted a pal that he had not only assaulted Fisher, but also took revenge on Govan, one source said.

“I kicked his ass from the backyard to the front room, and spit in her face,” the text read, according to the source.

A source close to Fisher confirmed the fight, but insisted it wasn’t as one-sided as Barnes claimed.

“Matt came after Derek but he only had a few scratches,” the source said. “Derek’s not going to press charges, he’s going to let it go.”

This is all Team Too Much.  Not only has Derek been divorced from his wife of 10 years, Candace, for all of five minutes, but Matt and Gloria are still technically married. 

The NBA has been alerted about the brawl and NBA security is handling the off-court brawl how they see fit.  The damn season hasn't even started and Matt is already ON ONE.

Photos: Getty