Arizona tries to snap its longest losing streak in four seasons Saturday night against the visiting San Diego Padres.The Diamondbacks (59-88) have been outscored 36-13 during a seven-game losing streak after falling 6-5 in Friday's series opener. A.J. Pollock went 3 for 4 with a homer and career high-tying four RBIs for Arizona, which is now seeking to avoid its longest run of futility since a 10-game losing streak from May 23-June 2, 2010.Mark Trumbo is mired in a 1-for-18 slump and Miguel Montero is 6 for his last 45 with no extra-base hits. The Diamondbacks are batting .196 during their skid.Arizona could be in for another long night against Tyson Ross (13-13, 2.66 ERA), who enters with one of the NL's lowest ERAs. The right-hander came within one out of recording his 15th consecutive quality start Sunday, yielding three runs, seven hits and four walks over 5 2/3 innings in a 6-0 loss at Colorado."Stats at the end of the day don't matter to me," he said. "It's just all about doing my job on the days I get to go out there and pitch, and giving us a shot."Ross struck out eight over six innings of one-run ball to beat the Diamondbacks 3-1 last Monday, improving to 2-2 with a 2.49 ERA over seven starts in the series. However, he's posted a 6.55 ERA in his last two in Arizona.With 191 strikeouts, Ross has a chance to join Kevin Brown, Jake Peavy and Clay Kirby as the only Padre pitchers to reach 200 in a season.San Diego (68-78) has followed a six-game losing streak by winning two of three. Rene Rivera hit his 10th homer and Eric Stults snapped a three-start losing streak as the Padres improved to 54-1 when leading after eight innings."A great standard has been set in our bullpen from a lot of great relievers," manager Bud Black told MLB's official website.Jedd Gyorko went 2 for 5 and was one of six players to drive in a run for San Diego. Though he's batting .206 on the season, Gyorko is 9 for his last 24 with a homer, four doubles and five RBIs.The Padres' win was just their eighth in 25 road games. San Diego is 4-2 in its last six against the Diamondbacks, who have dropped five of seven at home.Arizona gives the ball to Chase Anderson (8-6, 3.71), who allowed two runs and four hits over six innings before leaving without a decision in Saturday's 5-2 loss at Dodger Stadium.Anderson has shined over a six-start stretch at home, going 3-1 with a 2.57 ERA while striking out 35 in as many innings. His only loss over that stretch came 7-4 to San Diego on Aug. 24 after giving up five runs -- four earned -- and a season high-tying four walks over five innings.However, Anderson beat the Padres 12-6 on May 28 in his third big-league start, yielding four runs -- one earned -- over five innings.Pollock is 12 for 24 with two homers, three doubles and eight RBIs against the Padres this year. He's hitting .370 over an eight-game stretch since returning from a broken hand.
Tyson Ross has thrown a slider down in or below the strike zone 51.5 percent of the time this year, which is the most among qualified pitchers. The Diamondbacks have a .403 OPS in plate appearances that end in sliders in that zone, which is fourth lowest in baseball this year.