Diamondbacks-Giants Preview

With Buster Posey enjoying an MVP-type tear at the plate, the San Francisco Giants are in position to make a run at the NL West title during their upcoming homestand.

Ahead of a much-anticipated series against the division leaders, the Giants look to extend their longest home winning streak in more than a year when they take on the Arizona Diamondbacks on Tuesday night.

Posey has batted .493 with seven home runs and 21 RBIs in his last 16 games, and .455 (10 for 22) with three homers and nine driven in as San Francisco has won six consecutive home games – its best such streak since a seven-game run April 8-22, 2013.

The 2012 NL MVP also went 13 for 23 with two homers and eight RBIs on the Giants’ just-completed six-game trip, though he was 0 for 2 to snap a five-game hitting streak in a 6-1 defeat to Detroit on Sunday. San Francisco lost ground in the division with the Los Angeles Dodgers’ sweep of Arizona.

”We needed a timely hit there to get back into the game,” manager Bruce Bochy said. ”That’s what we’ve been getting the last few games, but not that time.”

The Giants (78-65), who still own a healthy lead for the top wild card spot, host the rival Dodgers this weekend. First, they’ll try to inch closer by improving their 8-5 record against the Diamondbacks (59-84).

"We’ve got guys coming into town that we need to play good against and win," pitcher Tim Hudson told MLB’s official website.

Posey has batted .390 with three home runs and 14 RBIs in his last 15 meetings with Arizona. He’s 1 for 5 against Wade Miley this season, but 9 for 20 with a homer and three doubles lifetime in the matchup.

Miley (7-10, 4.18 ERA) has gone 0-2 with a 1.69 ERA in his last four starts, with the Diamondbacks providing him with a total of three runs. Arizona has dropped his last six outings.

The left-hander is seeking his third victory in as many starts against the Giants this season. He shut them down at AT&T Park on July 12, allowing four hits over seven innings of a 2-0 win.

Hunter Pence has gone 11 for 22 with six RBIs during San Francisco’s home winning streak, but he’s 2 for 18 all-time against Miley and batting .151 versus Arizona this season. Pence’s 18-game hitting streak was snapped Sunday.

Former Diamondback Yusmeiro Petit (4-3, 3.89) has a 1.33 ERA in his last nine appearances at AT&T Park. In his only start in that span, he gave up one run with nine strikeouts in a 4-1 win over Colorado on Aug. 28.

The right-hander had retired a major league-record 46 consecutive batters over the course of seven outings before allowing a double to Rockies pitcher Jordan Lyles in that contest.

Petit, who spent 2007-09 with Arizona, has allowed two runs over 15 innings while winning two career starts against his former club. One of them was a one-hitter with seven strikeouts in a 3-0 home win Sept. 6, 2013.

The Diamondbacks will be trying to avoid their 12th loss in 14 road games. Former Giants outfielder Cody Ross was the lone bright spot with three hits in Sunday’s 7-2 defeat at Dodger Stadium.

Arizona has averaged 2.2 runs and four homers in its last 13 road contests.