Xander Bogaerts had a home run overturned due to fan interference and the Padres couldn't overcome an early 4-0 deficit as they lost their fourth straight game.

The Padres-Giants rivalry heats up as Heliot Ramos shares a bold view on the fan interference call that erased Xander Bogaerts’ homer.

It probably happened again for thousands of fans in San Diego's Petco Park on Monday night. Padres shortstop Xander Bogaerts sent a deep fly to left field that ended up in the seats and was initially ruled a home run. It appeared to have slipped out of Giants left fielder Heliot Ramos ' glove and into the seats.

Xander Bogaerts had a home run taken off the board Monday night after a disputed fan-interference ruling -- a run that ultimately proved decisive in the Padres’ 4-3 series-opening loss to the Giants at Petco Park.

The Padres’ losing streak reached four games in part as a result of the play reversal. San Diego dropped to two games out of first place.

Though the fan didn't make contact with the ball or Heliot Ramos, a review resulted in an interference call that negated a homer.

SAN DIEGO — Xander Bogaerts of the San Diego Padres had a home run overturned due to fan interference, and manager Mike Shildt was ejected for coming out of the dugout to talk to the umpires in the second inning of the game against the San Francisco Giants.