This article was originally published on www.si.com as Little Kid Decked by Security Guards After Running on Field at Giants-Padres Game. The Padres beat the Giants, 5-1, at home on Tuesday night and one young fan will never forget his experience at Petco Park, but for all the wrong reasons.

Compared to some of their NL West adversaries, the Giants and president Buster Posey have a lot of work to do when it comes to the bullpen.

The San Francisco Giants lost 5-1 to the San Diego Padres on Tuesday at Petco Park after a first-inning home run from Jung Hoo Lee.

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.

SAN DIEGO — Roughly a week ago, Kai-Wei Teng and Nick Pivetta faced off at Oracle Park in what ended up being a 10-run loss for the Giants. There would be no blowout on Tuesday night at Petco Park, but the result was the same.

Padres manager Mike Shildt expressed his frustration with the review process on the controversial play in San Diego's loss to the San Francisco Giants.