PHOENIX — The San Diego Padres took the right approach against Arizona's Patrick Corbin, laying off his diving slider and pitches out of the strike zone.
They managed to make the young left-hander work hard and got a few big hits.
It still wasn't good enough.
Carlos Quentin hit a two-run homer off Corbin, who still battled his way through six innings to become the first left-hander in Arizona history to start a season with eight straight wins in the Diamondbacks' 6-5 win over the Padres on Sunday.
"Corbin, you can see why his stats are what they are," Padres manager Bud Black said. "That is a live left arm, it really is. A live fastball, good slider and occasionally a solid changeup. We put some stress on him, we did. We had some good swings but he is a good pitcher. We will see him again. He is going to be around a while."
A stellar start to the season put Corbin in select company, joining five-time Cy Young Award winner Randy Johnson as the only left-handers in team history to open a season 7-0 after tossing a three-hitter against Colorado his last start.
The Padres were much more selective after facing Corbin on May 4 and made the 23-year-old work for his outs the second time around, becoming the first team to score more than two earned runs against him this season.
Corbin fought his way through it, making just enough good pitches and getting plenty of help from the offense to pass Johnson and become the third Arizona pitcher to start 8-0.
Eric Chavez homered for the second straight game, Martin Prado matched a career high with four of Arizona's 11 hits and drove in a big run in the seventh inning after getting three hits the night before.
Corbin also helped himself with a run-scoring single in the fifth off Tommy Layne (0-1).
Heath Bell closed out the workman-like win with a perfect ninth for his eighth save.
"The thing about Patrick is he kept his composure," Diamondbacks manager Kirk Gibson said. "This was a total contrast to the last game he pitched and he kept grinding it out."
The Padres jumped on Corbin's strike-throwing tendencies right away, with leadoff hitter Chris Denorfia hitting his first pitch past Chavez at third for a double. Denorfia moved over on a sacrifice and scored on Chase Headley's groundout, giving San Diego an early lead on a pitcher who hasn't trailed much this season.
It didn't last the inning.
Paul Goldschmidt lined a double off Jason Marquis in the bottom half and Chavez followed with his seventh homer of the season, a two-run, opposite-field shot to left.
Arizona added two more runs in the second against Marquis, on Miguel Montero's run-scoring double and a sacrifice fly by Gerardo Parra that made it 4-1.
Marquis continued to labor with his command and was replaced after walking two in the fourth inning. He allowed four runs on seven hits in 3 1-3 innings
"There were some positives and some negatives," said Marquis, who had won his five previous starts. "Obviously, I would like to go deeper. I just wasn't executing. They had a good game plan. They were attacking me early in the count. A lot of first-pitch, second-pitch swings. It worked to their advantage today."
NOTES:. Quentin finished the series 6 for 10 with three doubles and a homer. ... Marquis' outing was his shortest since lasting 1 2-3 innings on May 20, 2012 at Milwaukee. ... The Diamondbacks will call up LHP Tyler Skaggs to start the first game of Monday's doubleheader against Texas after RHP Ian Kennedy cut his index finger doing the dishes and was scratched. RHP Trevor Cahill will pitch the second game in the first scheduled doubleheader in Chase Field history. ... LHP Clayton Richard will pitch for San Diego against Seattle on Monday after a stint in the minors to work on his mechanics. Richard originally went on the 15-day DL on May 5 with an intestinal virus after going 0-4 with an 8.54 ERA.