Arizona (40-44) at Los Angeles (43-40)

Los Angeles Dodgers starter Brad Penny goes for his 10th win of the season and seeks to continue his home dominance of the Arizona Diamondbacks the teams conlcude their three-game series on Wednesday at Dodger Stadium.

Penny (9-2, 2.94 ERA), who is off to the best start of his seven-year career, can join St. Louis’ Jason Marquis and New York’s Tom Glavine as the only NL pitchers with double-digit win totals.

The right-hander is 4-0 with a 1.27 ERA and .190 opponent batting average in six home starts against the Diamondbacks. Penny lost his lone start against Arizona this season on May 1, allowing three runs in six innings of a 3-2 road defeat.

Penny received his first career All-Star nod on Sunday, thanks in large part to a stellar June in which he went 4-1 with a 3.05 ERA in six starts.

Last Friday against the Los Angeles Angels, Penny allowed one run over seven innings to earn the win in a 6-1 Dodgers victory.

“He had his good stuff,” Dodgers catcher Russell Martin said. “He had good snap on his curve-ball, he was keeping his fastball down, moving it in and out. He’s throwing that ball like 95 miles an hour, and he’s keeping that ball down, it’s going to be real tough on those hitters.”

Penny, who is 4-1 in eight starts with a 3.25 ERA at Dodger Stadium, will try to help the Dodgers (43-40) complete a sweep of Arizona at home for the first time since Sept. 7-9, 2004. Aaron Sele pitched six strong innings and allowed two runs in Tuesday’s 11-3 win.

First baseman Nomar Garciaparra extended his hitting streak to 16 games, going 1-for-4 with a single. He is batting .360 during the run.

The Diamondbacks (40-44) send Claudio Vargas (7-4, 4.82) to the mound as they try to avoid a third consecutive defeat. Vargas didn’t have his best stuff in Friday’s game at Oakland, allowing three runs, six hits and three walks in six innings, but picked up the win in the 6-4 Arizona victory.

“He was on cruise control for the first five innings and then he walked a guy, hit a guy,” catcher Johnny Estrada. “You can’t do that with the lead that we had and the way the game was going.”

Vargas is 1-0 with a 3.44 ERA, and has not allowed more than three runs in any of those games.

“The last three times it seems like his confidence is higher, the ball is jumping out of his hand better and his slider has been better the last few times out, too,” Arizona manager Bob Melvin said.

Vargas is 2-0 with a 2.61 ERA in five career appearances—three starts— against Los Angeles.

Diamondbacks right fielder and former Dodger Shawn Green went 1-for-3 Tuesday after a 3-for-4 effort in Monday’s series opener. He is batting .467 (14-for-30) over his last eight games. Green is also 10-for-25 (.400) in his career versus Penny.