PITTSBURGH (AP) Thrust into the third spot in the lineup behind superstar teammate Andrew McCutchen earlier this month, Gregory Polanco knew it might take a while to get settled.
Or maybe not.
The rapidly maturing Pittsburgh Pirates outfielder is so hot at the moment, even his mishits are finding the seats. Polanco crushed a three-run homer off struggling Shelby Miller in the first inning and finished with a career-best five RBIs as the Pirates rolled by the Arizona Diamondbacks 12-1 on Tuesday night.
''You know you're in the middle of the lineup,'' Polanco said. ''You're expected to hit. You're fighting every pitch, every at-bat.''
Polanco's shot to the concourse in right-center field off Miller (1-6) three batters in gave Pittsburgh an early boost, even if Polanco flung his bat in disgust figuring he'd just missed it. Instead, it cleared the seats for his sixth home run of the season.
''I thought I didn't get that one,'' Polanco said. ''I don't know but ... (it just) kept going.''
Polanco is hitting .317 (20 of 63) with three home runs and 13 RBIs in 15 games since manager Clint Hurdle elevated him to third in a lineup that is batting an impressive .283.
''You put good hitters at third,'' Hurdle said. ''It's been a nice run for him.''
And a miserable one for Miller. His recent recovery from a poor start with the Diamondbacks took a step backward. Less than a year removed from an All-Star appearance with Atlanta, Miller had his ERA rise to 7.09 after surrendering six runs in five innings.
''I feel I'm obviously a better pitcher than this but the results just aren't there,'' Miller said. ''I'm not going to quit, though.''
The Diamondbacks acquired Miller in December figuring he and Zack Greinke could spearhead the club's return to contention. The transition for both has been uneasy at best. Greinke's ERA is 4.59 and Miller's remains well north of that thanks to an inability to keep the ball in the strike zone or the ballpark, problems that struck once again versus the surging Pirates.
''I keep putting the leadoff hitter on base and that keeps hurting me,'' Miller said. ''I've got to stop doing it. That's pretty simple. I didn't have command of my fastball tonight and it got me into the jams that I wasn't able to escape.''
Francisco Liriano (4-3) scattered two hits in 5 2/3 innings and added an RBI single as the Pirates improved to 6-2 during a 10-game homestand. Pittsburgh is 15-2 in Liriano's last 17 starts at PNC Park, though the left-hander wasn't as clean as he hoped after getting staked to a massive lead, leaving after walking in a run in the sixth.
Pittsburgh reliever Arquimedes Caminero was ejected in the eighth after hitting a pair of batters in the head. Caminero drilled 2B Jean Segura in the seventh and Nick Ahmed in the eighth. Segura was sent to the hospital for tests after showing signs of a concussion. Caminero has struggled all season, walking 13 and hitting three in just 17 1/3 innings of work.
''Guys need to keep the ball down and away from the head area,'' Arizona manager Chip Hale said. ''If a guy can't do it then he has no business being up here in the major leagues.''
Diamondbacks: OF David Peralta is hitting off a tee and sending Hale texts about how rapidly his inflamed right wrist is improving. Peralta went on the disabled list on May 15. ... Reliever Josh Collmenter was scheduled to make a rehab appearance at Triple-A Reno. Collmenter has been on the disabled list all season with right shoulder inflammation.
Pirates: Pitcher Ryan Vogelsong has multiple facial fractures and significant swelling over his left eye after getting hit by a fastball from Colorado's Jordan Lyles on Monday. Vogelsong remained in the hospital on Tuesday and trainer Todd Tomczyk said it could be several days before the swelling subsides enough to get a clearer picture of the extent of Vogelsong's injuries, though Vogelsong's vision has not been severely affected. Pittsburgh called up A.J. Schugel to fill Vogelsong's spot on the roster.
Diamondbacks: Rubby De La Rosa (4-4, 3.53 ERA) returns to work on Wednesday after the Diamondbacks skipped his spot in the rotation while he dealt with a sore groin. De La Rosa is 3-1 with a 1.93 ERA in his last five starts.
Pirates: Jeff Locke (3-3, 4.63 ERA) looks for a second straight victory in the middle game of the three-game set. Locke is 0-2 with a 6.87 ERA in four career appearances against the Diamondbacks.