India, May 25 -- A heated new soccer rivalry erupted into chaos in San Diego on Saturday, as fans of the Los Angeles Galaxy and San Diego FC clashed violently in the stands. Video footage captured the wild brawl that broke out after the match, prompting a swift response from police in riot gear to control the scene.

San Diego FC, a new expansion team, has had a strong start, while LA Galaxy, an established team and reigning MLS champion, is still winless this season. On Saturday, it was only the two teams' second meeting in the stadium. San Diego FC clinched a thrilling 2-1 victory over the LA Galaxy on Saturday at Snapdragon Stadium, thanks to a 95th-minute goal from Hirving "Chucky" Lozano.

While the two teams left the field a few min...