LOS ANGELES — San Diego baseball (14-4, 2-1 WCC) stormed back for a 6-5 comeback win at USC (9-7, 3-0 Pac-12) on Tuesday night, earning its 14th victory in its last 16 games.

Junior Shane McGuire delivered a RBI double down the right field line in the top of the ninth inning to tie the game at five runs apiece, then true freshman Jack Costello pushed across the go-ahead run with an RBI infield single to second base to move the score to 6-5 in favor of USD.

Costello was a team-best 5-5 with an RBI and a run scored on Tuesday night, stretching his hit streak to 12 games with the best offensive performance of his young USD career. That 12-game span has included 10 total multi-hit performances and two separate streaks of five (3/6-3/13 and 3/14-present) consecutive contests with more than one hit.

The Toreros trailed for nearly the entirety of the game, falling behind after the Trojans plated an early unearned run. USC would stretch its lead to as many as four runs in the contest's middle frames before San Diego began to mount its comeback.

Graduate student Thomas Luevano sent a two-RBI double down the right field line to cut the USC lead to two runs before senior Adam Lopez scorched a line-drive single right back up the middle to make it a one-run contest and set the stage for his team's late-game comeback.

True freshman Cole Colleran started on the mound for USD on Tuesday night, going 2.2 innings while surrendering two runs (one earned) in his first college start.

Freshman Eddy Pelc turned in 1.1 scoreless innings in relief then fellow freshman Carter Rustad set forth San Diego's most impressive pitching performance of the night, throwing 3.0 scoreless and hitless frames to earn the win and finalize the 6-5 comeback victory for USD. 

The Toreros return to action this upcoming Friday when they host West Coast Conference foe Pacific for a three-game set at Fowler Park. First pitch on Friday is set for 6 p.m.