Diamondbacks at Padres, 6:40 p.m., Cox, Ch. 34, MLB Network

Diamondbacks LHP Eduardo Rodriguez (3-5, 5.78) vs. Padres RHP Randy Vasquez (3-4, 3.79)

At Petco Park: Rodriguez had found some consistency in previous starts until July 4, when the Kansas City Royals tagged him for eight earned runs on 12 hits, including three home runs, in 4⅓ innings. … The strikeouts have been there for him, with 87 in 15 starts. Rodriguez has had trouble keeping his pitch counts down, which is a reason he is averaging just over five innings per start. But he has shut out the Padres in his two career starts against San Diego over 11⅔ innings of work. He will be pitching at Petco Park for just the second time in his career. … Vasquez is set for his 19th start of the season. He has not won a game since May 14 and has eight straight no-decisions. He’s faced the Diamondbacks four times (three starts) with no decisions and a 2.95 earned run average. This season, Vasquez has 49 strikeouts and has issued 42 walks.

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Coming up

Friday, July 11: At L.A. Angels, 6:38 p.m., Diamondbacks RHP Ryne Nelson (5-2, 3.39) vs. Angels LHP Tyler Anderson (2-6, 4.19).

Saturday, July 12: At L.A. Angels, 6:38 p.m., Diamondbacks RHP Zac Gallen (7-9, 5.15) vs. Angels LHP Yusei Kikuchi (3-6, 3.02).

Sunday, July 13: At L.A. Angels. 1:07 p.m., Diamondbacks RHP Merrill Kelly (7-5, 3.41) vs. Angels RHP José Soriano (6-6, 4.00).

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This article originally appeared on Arizona Republic: Arizona Diamondbacks vs. San Diego Padres updates, pitching matchups