A night at the ballpark turned violent Wednesday at Angel Stadium ... when a Los Angeles Dodgers fan was punched and kicked in the head during an altercation in the stands -- and TMZ Sports has learned arrests have been made.
The ugly incident was caught on camera.
The video shows a man in a Dodgers jersey getting sucker punched by another guy rocking a black shirt. After falling back in his chair, a second man comes up and kicks the Dodgers fan directly in the head.
According to a spokesperson for the Anaheim Police Department, the fight "appears to have started over the stealing of a hat.