Colorado Rockies' Todd Helton keeps control a throw from third baseman Nolan Arenado, allowing Arizona Diamondbacks' A.J. Pollock by for a single during the fifth the inning of a baseball game Wednesday, May 22, 2013 in Denver. The Rockies won 4-1. (AP Photo/Barry Gutierrez)

Arizona Diamondbacks' A.J. Pollock scores on a Didi Gregorius RBI single against the Colorado Rockies during the sixth inning of a baseball game on Monday, May 20, 2013, in Denver. (AP Photo/Jack Dempsey)

Arizona Diamondbacks' A.J. Pollock scores on a Didi Gregorius RBI single against the Colorado Rockies during the sixth inning of a baseball game on Monday, May 20, 2013, in Denver. (AP Photo/Jack Dempsey)

Arizona Diamondbacks' A.J. Pollock, left, Martin Prado and Jason Kubel celebrate a victory over the Colorado Rockies during the ninth inning of a baseball game on Monday, May 20, 2013, in Denver. Arizona defeated Colorado 5-1. (AP Photo/Jack Dempsey)

Arizona Diamondbacks' A.J. Pollock scores on a Didi Gregorius RBI single against the Colorado Rockies during the sixth inning of a baseball game on Monday, May 20, 2013, in Denver. (AP Photo/Jack Dempsey)

Miami Marlins relief pitcher Mike Dunn (40) and catcher Jeff Mathis celebrate as the Marlins defeate the Arizona Diamondbacks 2-1in a baseball game, Sunday, May 19, 2013 in Miami. Dunn, the Marlins' third pitcher of the inning, got pinch-hitter A.J. Pollock to ground out on a 3-2 pitch with the bases loaded to end it. (AP Photo/Wilfredo Lee)

Miami Marlins relief pitcher Mike Dunn celebrates as the Marlins defeated the Arizona Diamondbacks 2-1 in a baseball game on Sunday, May 19, 2013, in Miami. Dunn got pinch-hitter A.J. Pollock to ground out on a 3-2 pitch with the bases loaded to end the game. (AP Photo/Wilfredo Lee)

Miami Marlins first baseman Greg Dobbs takes the throw to put out Arizona Diamondbacks' A.J. Pollock (11) at first base during the fifth inning of a baseball game, Saturday, May 18, 2013 in Miami. (AP Photo/Wilfredo Lee)

Arizona Diamondbacks' Gerardo Parra (14) is forced out by Atlanta Braves' Ramiro Pena who turns a double play on Diamondbacks' A.J. Pollock during the second inning of a baseball game on Wednesday, May 15, 2013, in Phoenix. (AP Photo/Matt York)

PHOENIX, AZ - MAY 12: A.J. Pollock #11 of the Arizona Diamondbacks hits a RBI single against the Philadelphia Phillies during the second inning of the MLB game at Chase Field on May 12, 2013 in Phoenix, Arizona. (Photo by Christian Petersen/Getty Images)

Arizona Diamondbacks' A.J. Pollock, right, strikes out to end a baseball game against the Philadelphia Phillies, Saturday, May 11, 2013, in Phoenix. The Phillies won 3-1. (AP Photo/Matt York)

Philadelphia Phillies pitcher Jonathan Papelbon reacts to striking out Arizona Diamondbacks' A.J. Pollock for the final out of a baseball game on Saturday, May 11, 2013, in Phoenix. The Phillies won 3-1. (AP Photo/Matt York)

Arizona Diamondbacks' Cody Ross, left, A.J. Pollock, and Gerardo Parra, right, celebrate a win against the Philadelphia Phillies after the ninth inning of a baseball game on Thursday, May 9, 2013, in Phoenix. The Diamondbacks defeated the Phillies 2-1. (AP Photo/Ross D. Franklin)

Arizona Diamondbacks' A.J. Pollock (11) jogs to first base after earning a walk against Philadelphia Phillies' Cole Hamels, left, during the fifth inning of a baseball game on Thursday, May 9, 2013, in Phoenix. (AP Photo/Ross D. Franklin)

Arizona Diamondbacks' Cody Ross, left, A.J. Pollock, center, and Gerardo Parra celebrates after defeating the Los Angeles Dodgers 3-2 in their baseball game, Wednesday, May 8, 2013, in Los Angeles. (AP Photo/Mark J. Terrill)

LOS ANGELES, CA - MAY 08: Outifielders Cody Ross #7, A.J. Pollock #11, and Gelrardo Parra #8 (L to R) of the Arizona Diamondbacks jump together to celebrate after the game against the Los Angeles Dodgers at Dodger Stadium on May 8, 2013 in Los Angeles, California. The Diamondbacks won 3-2. (Photo by Stephen Dunn/Getty Images)

San Diego Padres shortstop Everth Cabrera makes a long throw across the infield to throw out Arizona Diamondbacks' A.J. Pollock in the first inning of a baseball game in San Diego, Saturday, May 4, 2013. (AP photo/Lenny Ignelzi)

SAN DIEGO, CA - MAY 4: A.J. Pollock #11 of the Arizona Diamondbacks is congratulated by manager Kirk Gibson #23 after hitting a solo home run during the fourth inning of a baseball game against the San Diego Padres at Petco Park on May 4, 2013 in San Diego, California. (Photo by Denis Poroy/Getty Images)

SAN DIEGO, CA - MAY 4: A.J. Pollock #11 of the Arizona Diamondbacks rounds the bases after hitting a solo home run during the fourth inning of a baseball game against the San Diego Padres at Petco Park on May 4, 2013 in San Diego, California. (Photo by Denis Poroy/Getty Images)

SAN DIEGO, CA - MAY 4: Umpire Dan Bellino gives the ball back to Clayton Richard #33 of the San Diego Padres as A.J. Pollock #11 of the Arizona Diamondbacks #23 rounds the bases after hitting a solo home run during the fourth inning of a baseball game against the San Diego Padres at Petco Park on May 4, 2013 in San Diego, California. (Photo by Denis Poroy/Getty Images)

SAN DIEGO, CA - MAY 4: A.J. Pollock #11 of the Arizona Diamondbacks hits an RBI double during the second inning of a baseball game against the San Diego Padres at Petco Park on May 4, 2013 in San Diego, California. (Photo by Denis Poroy/Getty Images)

SAN DIEGO, CA - MAY 4: A.J. Pollock #11 of the Arizona Diamondbacks hits an RBI double during the second inning of a baseball game against the San Diego Padres at Petco Park on May 4, 2013 in San Diego, California. (Photo by Denis Poroy/Getty Images)

Arizona Diamondbacks' Cliff Pennington, right, arrives at home plate to high-fives from teammates Eric Chavez (12) and A.J. Pollock (11) after hitting a home run against the San Francisco Giants during the second inning of a baseball game on Wednesday, May 1, 2013, in Phoenix. (AP Photo/Ross D. Franklin)

Arizona Diamondbacks' Cliff Pennington, right, arrives at home plate to high-fives from teammates Eric Chavez (12) and A.J. Pollock (11) after hitting a home run against the San Francisco Giants during the second inning of a baseball game on Wednesday, May 1, 2013, in Phoenix. (AP Photo/Ross D. Franklin)

Arizona Diamondbacks' Gerardo Parra, left, A.J. Pollock, and Cody Ross, front right, celebrate after the final out in ninth inning of a baseball game against the Colorado Rockies on Sunday, April 28, 2013, in Phoenix. The Diamondbacks defeated the Rockies 4-2. (AP Photo/Ross D. Franklin)

PHOENIX, AZ - APRIL 28: Outfielders A.J. Pollock #11, Cody Ross #7 and Gerardo Parra #8 of the Arizona Diamondbacks high fives teamamtes after defeating the Colorado Rockies 4-2 in the MLB game at Chase Field on April 28, 2013 in Phoenix, Arizona. (Photo by Christian Petersen/Getty Images)

Arizona Diamondbacks' A.J. Pollock (11) celebrates his home run with teammate Paul Goldschmidt as Colorado Rockies' Wilin Rosario, left, looks on in the first inning during a baseball game, on Saturday, April 27, 2013, in Phoenix. AP Photo/Ross D. Franklin)

Arizona Diamondbacks' A.J. Pollock, front right, who scored the game-winning run, joins other teammates as they run out to teammate Cody Ross, who hits the sacrifice fly to knock Pollock in, as Colorado Rockies' Wilin Rosario, left, looks on in the 10th inning during a baseball game, on Saturday, April 27, 2013, in Phoenix. The Diamondbacks defeated the Rockies 3-2. (AP Photo/Ross D. Franklin)

PHOENIX, AZ - APRIL 27: A.J. Pollock #11 of the Arizona Diamondbacks reacts as he scores the winning run on a walk off sacrifice fly hit by Cody Ross (not pictured) in the 10th inning of the MLB game against the Colorado Rockies at Chase Field on April 27, 2013 in Phoenix, Arizona. (Photo by Christian Petersen/Getty Images)

PHOENIX, AZ - APRIL 27: Cody Ross #7 (C) of the Arizona Diamondbacks celebrates with Eric Hinske #22 and A.J. Pollock #11 after hitting a walk off sacrifice fly to defeat the Colorado Rockies 3-2 in the 10th inning of the MLB game at Chase Field on April 27, 2013 in Phoenix, Arizona. (Photo by Christian Petersen/Getty Images)