A pro baseball game turned ugly Thursday night ... when players charged at fans in the stands after some spectators allegedly threw beer at them.
The wild scene all went down in a Frontier League game at Yogi Berra Stadium in Little Falls, NJ ... when the New Jersey Jackals vs. Sussex County Miners tilt had to be paused due to a near-brawl in the stands.
The incident was all captured on video ... and it's crazy -- 'cause players from both teams bum-rushed at spectators, nearly igniting a huge fight in the seats.