UCLA Football Star -- SUSPENDED INDEFINITELY ... After Allegedly Robbing Uber Driver

More damage for the UCLA football star who allegedly fought and robbed an Uber driver ... now the guy has just been suspended indefinitely and will probably miss the season opener.

The alleged Uber jacker is Ishmael Adams -- one of the best cornerbacks in the country -- and according to cops ... sworn enemy of one upset Uber driver.

As we previously reported, Adams allegedly forcibly robbed an Uber driver of his cell phone early Sunday morning ... while conveniently located in front of a police station. Oops.

Now, UCLA head coach Jim Mora has announced that Adams has been suspended indefinitely while police investigate ... bad news for the #13 ranked Bruins who takes on Virginia Saturday.

BTW -- it's been a hell of an off-season for Mora -- who's already had to deal with a kettle-swingin' Diddy, losing a huge recruit in Snoop's son ... and now, a Man vs. Uber situation.