MIAMI (AP) – Jeff Locke tossed a three-hitter and the Pittsburgh Pirates beat the Miami Marlins 10-0 on Monday night.

Gregory Polanco’s grand slam, Sean Rodriguez’s two-run homer, and David Freese’s four hits helped power the offense for the Pirates, who won the first of a four-game series in Miami. The first two games were originally scheduled to be played in Puerto Rico, but were moved due to concerns of the Zika virus.

Locke (4-3) struck out one and did not walk a batter while throwing 67 of 105 pitches for strikes. It was his first complete game in 101 career starts. Locke retired 19 straight at one point and needed just six pitches to get through the seventh inning.

The announced crowd of 10,856 was a season-low for the Marlins, who entered the day averaging just under 20,000. Marlins starter Justin Nicolino (2-3) allowed three runs and six hits in five innings.

Nicolino left in the sixth after giving up a leadoff single to Andrew McCutchen with the Marlins trailing 2-0. Jose Urena relieved Nicolino and eventually loaded the bases for Polanco, who deposited a 2-1 change-up into the seats in right-center field for a 7-0 lead.

It was Polanco’s first career grand slam and his eighth home run of the season. He has hit in eight straight games with three home runs and 12 RBIs during the stretch.

Jung Ho Kang and Freese had RBI singles to start the scoring for the Pirates.

Two of the Marlins’ hits were erased by double plays.