Mercer, Pirates knock around Padres

San Diego, CA ( - Jordy Mercer went 4-for-5 with a solo homer, two RBI and four runs scored to power the Pittsburgh Pirates to a 10-3 win over the San Diego Padres in the opener of a three-game set Monday at Petco Park.

Neil Walker collected three hits and drove in three runs, while Josh Harrison finished 3-for-6 with an RBI and a run scored for the Pirates, who have won four of their last five games.

Charlie Morton (2-7) tied a career-high with nine strikeouts and allowed just two runs on three hits with three walks over five frames to pick up the win.

"I think he competed very well the first four innings," Pittsburgh manager Clint Hurdle said of Morton. "He was able to compete and he was able to get the outs he needed to give us five solid (innings)."

Everth Cabrera and Seth Smith supplied an RBI and a run scored apiece for the Padres, who have lost two straight.

Tim Stauffer (2-2) surrendered two runs on four hits and two walks in just 2 2/3 innings to absorb the loss.

Mercer opened the scoring in the third when he launched a leadoff blast into the second deck in left field.

After Morton fanned, Harrison and Walker stroked back-to-back singles before an Andrew McCutchen walk loaded the bases for Ike Davis, who lifted a sacrifice fly to left to score Harrison for a 2-0 lead.

Pittsburgh tacked on a run in the fourth, as Starling Marte was hit by a pitch to the start the frame and then stole second before scoring on Mercer's single to center.

San Diego finally solved Morton in the fifth, as Alexi Amarista stroked a leadoff single for the Padres' first hit. Cabrera followed with an RBI double before scoring on Smith's base hit to center to bring the Padres within 3-2.

The Pirates got a run back in the sixth on Walker's run-scoring single to right before adding three more runs in the seventh to break the game open.

Pedro Alvarez opened the seventh with a walk before Mercer and pinch-hitter Jose Tabata ripped back-to-back singles to load the bases with one out.

Harrison made it three straight singles with an RBI base hit to left and Walker followed with a double to right, scoring Mercer and Tabata for a 7-2 spread.

Yonder Alonso's run-scoring groundout in the home half got the Padres within 7-3, but the Pirates scored three more in the eighth on a two-run single from pinch-hitter Gaby Sanchez and an RBI ground-rule double from McCutchen.

"You play six months there's going to be nights like this," San Diego manager Bud Black said of his team being blown out. "It's rare for this team to have games like this. You don't see them very often so when they do, it's rather alarming."

Game Notes

Mercer's four hits tied a career-high, set on Sept. 10, 2013 at Texas ... Morton improved to 3-0 in four career starts against the Padres ... Pittsburgh went 9-for-20 with runners in scoring position and left 16 men on base ... San Diego finished 1-for-10 with RISP and stranded 11 baserunners ... It was the longest nine-inning game in Petco Park history, taking 4:04 to complete ... San Diego's pitching staff combined to throw 249 pitches, the most ever thrown by the team in a nine-inning game, topping the previous record of 225 set on July 12 of last season against the San Francisco Giants.