PITTSBURGH - Josh Harrison had three hits to extend his hot streak and Jeff Locke overcame a shaky start to pitch seven innings as the Pittsburgh Pirates beat the Miami Marlins 7-3 on Wednesday night.
Harrison hit a double and scored twice. He is 20-for-44 during a 10-game hitting streak, with six doubles, one triple and five home runs.
Locke (3-3) gave up three runs in the first two innings, and then shut out the Marlins over his last five. He gave up six hits, no walks, and struck out seven, beating Miami for the first time in five starts.
Gaby Sanchez drives in a pair of runs.
Christian Yelich hit a two-run homer that drew Miami within 4-3 in the second.
Ike Davis had a two-run double in a four-run first for Pittsburgh against Tom Koehler (7-9).
Gaby Sanchez's two-run double capped a three-run seventh that pushed the lead to 7-3.
Jeff Baker singled in a run in the first for the Marlins.
Koehler was charged with four runs in six innings while allowing five hits and four walks and striking out four. It was the second time in his last nine starts that Koehler allowed more than three runs.
Russell Martin hit an RBI single in the seventh to give the Pirates a 5-3 cushion before Sanchez broke the game open with his double.
Tony Watson and Mark Melancon each pitched one scoreless inning of reliever for the Pirates.
Marlins: Right-hander Jarred Cosart was scratched from his scheduled start Thursday night because of a strained left oblique muscle. Cosart felt discomfort in his side while playing catch Wednesday and the Marlins decided to have him skip a start. He is tentatively scheduled to pitch next Tuesday against St. Louis. The Marlins got Cosart last week in a trade with Houston. He made his Miami debut the next day and took the loss against Cincinnati, giving up four runs in 5 1-3 innings Friday. He was 9-7 with a 4.41 ERA with the Astros. . Reliever Kevin Gregg is expected to have surgery to remove bone chips from right elbow and miss the remainder of the season. . Right-hander Henderson Alvarez played catch before the game, the first time he had thrown since going on the disabled list July 30 with right shoulder inflammation. He is expected to be activated Aug. 15, the first day he is eligible.
Pirates: Center fielder Andrew McCutchen missed his second straight game because of a fracture and cartilage damage in his lower left rib cage but remains hopeful of avoiding the disabled list. . Second baseman Neil Walker sat out for the third time in four games because of lower back tightness but is expected to return to the lineup Thursday. . Right-hander Gerrit Cole, will make a third rehab start for Triple-A Indianapolis with the date to be determined after he has a bullpen session Thursday. Cole has been on the DL since July 5 with a strained right lat.
Marlins: Rookie left-hander Brian Flynn (0-0, 6.00) will fill in for Cosart and start in the finale of the three-game series. Flynn was recalled from Triple-A New Orleans on Tuesday when right-hander Jacob Turner was designated for assignment. Flynn pitched once for the Marlins this season, allowing two runs in three innings June 27 against Oakland.
Pirates: Right-hander Edinson Volquez (8-7, 3.91) is 5-0 with a 1.99 ERA in six career starts against the Marlins and looks to snap his three-start winless streak, which comes on the heels of a four-start winning streak.
Copyright 2014 The Associated Press.