SAN DIEGO — Joe Musgrove pitched seven shutout innings against his hometown team and Jody Mercer homered to lead the Pittsburgh Pirates to a 6-3 victory over the sloppy San Diego Padres on Friday night.

Musgrove (3-3), a 2011 graduate of Grossmont High in suburban El Cajon, was facing the Padres for the first time in his three-year big league career. He allowed seven singles while striking out five and walking two.

The Padres had runners on first and third after hitting consecutive singles to open the seventh but Musgrove retired the side, including inducing Manuel Margot to hit into an inning-ending double play.

He was relieved by Steven Brault, a 2010 Grossmont grad. Brault had a short night, allowing two runs on two hits while getting just one out in the eighth.

Felipe Vazquez got the last two outs for his 16th save.

The Pirates won for the third time in nine games and the Padres lost for the 10th time in 12 games.

Musgrove was the starting pitcher for the United States in the All-Star Futures Game at Petco Park on July 10, 2016. He made his big league debut that Aug. 2 for Houston against Toronto, which drafted him with a supplemental first-round pick in 2011 before trading him to the Astros the following year.