CLEVELAND (AP)—Pedro Alvarez had one of his best games yet. Still, it was a win by the Pittsburgh Pirates that had him really excited. Alvarez drove in a career-high six runs with his second two-homer game in two days, powering Pittsburgh past the Cleveland Indians 9-5 Sunday. IMPRESSIVE POWER DISPLAY—Pedro Alvarez watches his ball after hitting a three-run home run off Cleveland Indians relief pitcher Esmil Rogers in the fifth inning of a baseball game, Sunday, June 1, in Cleveland. (AP Photo/Tony Dejak) “I’m just glad to help us win the series,” Alvarez said as music blared in the clubhouse following the Pirates’ second victory in three games, giving them a sixth series win in their last seven matchups.Alvarez seemed unfazed by his own accomplishment — hitting three-run homers in the fourth and fifth innings for his fourth career multihomer game. He also doubled, for his first game of three extra-base hits.His previous two multihomer games also came in consecutive games, July 20-21 against Milwaukee.“It’s just coincidence,” Alvarez said of homering twice in consecutive games once again.Manager Clint Hurdle said Alvarez has worked hard to lift his average to .207 with a team-high 12 homers and 34 RBIs, three behind team leader Andrew McCutchen. Alvarez has 10 RBIs in four games after going 10 games without any.“He’s worked hard to get to a better place,” Hurdle said. “He drove one ball to right, then took advantage of a mistake and hit another. He had a very good day at the plate.”Tony Watson (4-0), the second of five Pirates pitchers, worked 1 2-3 innings of relief for the win.Pittsburgh scored nine runs for the second straight game after totaling 13 runs during a four-game losing streak.Alvarez became the first Pirates player with six RBIs in a game since Andy LaRoche did it Sept. 28, 2009, against the Los Angeles Dodgers.Alvarez put the Pirates up 3-2 in the fourth. His line drive into the right field seats came after Cabrera fielded a two-out grounder by Casey McGehee, but threw it away.Alvarez hit a 1-1 pitch over the wall in right for his 12th homer and 9-4 lead.Pittsburgh won a series for only the second time in their last 21 road interleague matchups.