Each day, MLB.com selects one player from each game whose performance stands out:

Pedro Alvarez | Pirates 10, Mets 6
Alvarez belted a three-run homer -- his 30th of the season -- to cap a four-run first inning, collecting four RBIs.
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Paul Goldschmidt | D-backs 7, Giants 2
Goldschmidt notched a career-best five RBIs, including a three-run homer.
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Zack Greinke | Angels 5, Mariners 4
Greinke fanned 13, including four in one inning, part of a record-tying 20-strikeout performance by the Angels, who stayed two games back of the A's in the Wild Card chase.
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Russ Canzler | Indians 4, White Sox 3
Canzler homered for the second straight game and finished a triple shy of the cycle in going 3-for-4 as the Indians evened their series against the White Sox in Chicago.
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Johnny Cueto | Reds 4, Brewers 2
Cueto held the Brewers to two runs on five hits, striking out five, over seven strong innings to earn his 19th win of the season.
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Jon Jay | Cardinals 4, Astros 0
Jay drove in two runs, which was plenty of support for Jaime Garcia, who pitched seven scoreless innings.
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Jeff Keppinger | Rays 5, Red Sox 2
The second baseman launched a three-run homer in the second and Tampa Bay never looked back, while David Price made mincemeat of Boston's depleted lineup.
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George Kottaras | Athletics 3, Rangers 2 (10)
Kottaras' 10th-inning homer helped the A's hold ground in the AL Wild Card race and cut the Rangers' division lead to four games.
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Aaron Laffey | Blue Jays 4, Orioles 0
Notching his first victory since Aug. 5, Laffey blanked the O's for 5 2/3 innings, allowing five hits and no walks.
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DJ LeMahieu | Rockies 10, Cubs 5 (7)
LeMahieu went 3-for-3 and missed a chance at a homer for the cycle in a game called early due to rain.
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Kris Medlen | Braves 4, Marlins 3
The Braves won the 22nd straight start by Medlen in dramatic fashion, walking off for a clinch after the righty supplied seven solid innings.
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Carlos Ruiz | Phillies 6, Nationals 3
Ruiz's three-run homer broke the game open and gave Cole Hamels and the bullpen enough breathing room in a series-opening win.
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Anibal Sanchez | Tigers 2, Royals 0
Sanchez was brilliant in a three-hit shutout of the Royals, fanning 10, as the Tigers moved into a first-place tie with the White Sox atop the AL Central standings.
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Denard Span | Twins 5, Yankees 4
Span's two-run double with two outs in the seventh inning turned a one-run deficit into a one-run lead the Twins would keep.
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Edinson Volquez | Padres 2, Dodgers 1
Volquez struck out four and scattered six hits in seven shutout innings, helping the Padres deal a big blow to the Dodgers' playoff hopes.
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