PITTSBURGH -- The Giants managed to erase their first deficit of the day, but Mother Nature robbed them of a chance to mount a second comeback attempt.

Pirates prospect Cole Tucker slugged a tiebreaking home run off left-hander Derek Holland in the bottom of the fifth inning, resulting in the Giants' 3-1 loss on Saturday at PNC Park.

The Giants never got an opportunity to respond, as inclement weather promptly sent the game into a delay and brought the tarp out onto the field. After a three-hour and eight-minute delay, Major League Baseball decided that the game would not be restarted, saddling the Giants with their fourth consecutive loss. 

“If it weren’t for bad luck, right now we wouldn’t have any,” manager Bruce Bochy said. “That’s how things are going.”

Rain didn’t start to fall until about an hour into the delay, but PNC Park has a policy that the tarp must come out if lightning is detected within four miles of the stadium.

“I kind of wish we could have gotten to go a little bit longer,” Holland said. “I know it didn’t start raining for a little bit, but you’ve got to respect the call that’s always there. They’re looking out for our safety. I guess there was lightning right there.”

Holland opened his outing with three scoreless innings before surrendering a leadoff home run to Jung Ho Kang in the fourth. The Giants came back to tie the game at 1 in the fifth after Kevin Pillar singled, advanced to second on a perfectly placed bunt single by Holland and scored on Steven Duggar’s RBI single.

With storm clouds swirling overhead and lightning flashing in the distance, Holland returned to the mound for the bottom of the fifth and issued a leadoff walk to Pablo Reyes. He retired the next two batters he faced before misplacing a 2-2 sinker to Tucker, who crushed it 431 feet to dead center for a two-run home run, the first of his career.

“That sucked,” Holland said. “I’m not upset with the pitch, selection wise. The location, I wanted it more in. It was supposed to be up, but it was supposed to be in. I missed a little bit more over the middle of the plate. That’s very upsetting. When I was out there, I felt like I was pitching a pretty good game going into that.”

Tucker, who later came out for a curtain call, became the first Pirate to homer in his MLB debut since Starling Marte on July 26, 2012.

While Tucker’s curtain call was more exuberant than most -- he stepped out of the dugout, waved his helmet and thumped his chest to express his gratitude to the crowd -- Holland said he took no issue with his celebration.

“I didn’t pay attention to it,” Holland said. “Clearly, you guys saw I was still throwing. I don’t have anything against a curtain call. The kid hit a homer, his first homer. I don’t know how it went down, other than I focused on the hitter. In three pitches, he was out, and I was walking off the field. I mean, congrats. The kid is living in the moment. It’s his Major League debut, and he hit a homer. That’s not what I wanted. That’s for sure.”