Pittsburgh Pirates' Andrew McCutchen, center, scores ahead of the tag of Chicago Cubs catcher Welington Castillo, left, on a RBI-single by Michael McKenry during the first inning of a baseball game in Pittsburgh Thursday, May 23, 2013. The Pirates won 4-2. Making the call on the play is umpire Mark Wegner. (AP Photo/Gene J. Puskar)

Pittsburgh Pirates closer Jason Grilli delivers during the ninth inning against the Chicago Cubs Welington Castillo during a baseball game in Pittsburgh, Thursday, May 23, 2013. Grilli earned his 19th save of the season in the Pirates' 4-2 win. (AP Photo/Gene J. Puskar)

Pittsburgh Pirates' Andrew McCutchen, center, scores ahead of the tag of Chicago Cubs catcher Welington Castillo, left, on a RBI-single by Michael McKenry during the first inning of a baseball game in Pittsburgh Thursday, May 23, 2013. The Pirates won 4-2. Making the call on the play is umpire Mark Wegner. (AP Photo/Gene J. Puskar)

PITTSBURGH, PA - MAY 22: Welington Castillo #53 of the Chicago Cubs can't come up with the ball after a wild pitch by Jeff Samardzija #29 of the Chicago Cubs during the seventh inning against the Pittsburgh Pirates on May 22, 2013 at PNC Park in Pittsburgh, Pennsylvania. (Photo by Joe Sargent/Getty Images)

Pittsburgh Pirates' Andrew McCutchen, right, steals second as the throw from Chicago Cubs catcher Welington Castillo gets away from Cubs' Cody Ransom, left, during the sixth inning of a baseball game in Pittsburgh, Wednesday, May 22, 2013. (AP Photo/Gene J. Puskar)

Pittsburgh Pirates catcher Russell Martin, center, waits as Chicago Cubs' Darwin Barney, right, is greeted by teammate Welington Castillo, left, after both scored on a double by Cubs starting pitcher Matt Garza during the second inning of a baseball in Pittsburgh Tuesday, May 21, 2013. (AP Photo/Gene J. Puskar)

Chicago Cubs' Travis Wood, second from left, is congratulated by teammate Welington Castillo after hitting a two-run home run in the fifth inning of a baseball game against the New York Mets in Chicago on Sunday, May 19, 2013. (AP Photo/Charles Cherney)

CHICAGO, IL- MAY 19: Catcher Welington Castillo #53 of the Chicago Cubs (R) talks with relief pitcher Kyuji Fujikawa #11 of the Chicago Cubs before the eighth inning against the New York Mets on May 19, 2013 at Wrigley Field in Chicago, Illinois. (Photo by Brian Kersey/Getty Images)

CHICAGO, IL- MAY 19: Welington Castillo #53 of the Chicago Cubs (R) congratulates teammate Travis Wood #37 after Wood hit a two-run home run scoring Castillo during the fifth inning against the New York Mets on May 19, 2013 at Wrigley Field in Chicago, Illinois. (Photo by Brian Kersey/Getty Images)

CHICAGO, IL- MAY 19: Travis Wood #37 of the Chicago Cubs (L) follows through on a two-run home run scoring teammate Welington Castillo #53 as Anthony Recker #20 of the New York Mets catches during the fifth inning on May 19, 2013 at Wrigley Field in Chicago, Illinois. (Photo by Brian Kersey/Getty Images)

CHICAGO, IL- MAY 19: Travis Wood #37 of the Chicago Cubs (L) rounds the bases after hitting a two-run home run scoring teammate Welington Castillo #53 during the fifth inning against the New York Mets on May 19, 2013 at Wrigley Field in Chicago, Illinois. (Photo by Brian Kersey/Getty Images)

CHICAGO, IL - MAY 18: David Wright #5 of the New York Mets reacts after striking out during the fifth inning as Welington Castillo #53 of the Chicago Cubs watches on May 18, 2013 at Wrigley Field in Chicago, Illinois. (Photo by David Banks/Getty Images)

New York Mets' Rick Ankiel, right, scores past Chicago Cubs catcher Welington Castillo on a hit by Matt Harvey, as the throw from left fielder Alfonso Soriano pulls Castillo away from home during the seventh inning of a baseball game Friday, May 17, 2013, in Chicago. (AP Photo/Charles Rex Arbogast)

CHICAGO, IL - MAY 17: Welington Castillo #53 and Anthony Rizzo #44 of the Chicago Cubs collide trying to catch a foul ball against the New York Mets at Wrigley Field on May 17, 2013 in Chicago, Illinois. The Mets defeated the Cubs 3-2. (Photo by Jonathan Daniel/Getty Images)

CHICAGO, IL - MAY 17: Welington Castillo #53 and Anthony Rizzo #44 of the Chicago Cubs collide trying to catch a foul ball against the New York Mets at Wrigley Field on May 17, 2013 in Chicago, Illinois. The Mets defeated the Cubs 3-2. (Photo by Jonathan Daniel/Getty Images)

Chicago Cubs catcher Welington Castillo kneels on the ground after colliding with first baseman Anthony Rizzo as they tried to catch a pop-up by New York Mets' Rick Ankiel in foul territory during the ninth inning of a baseball game Friday, May 17 2013, in Chicago. The Mets won 3-2. (AP Photo/Charles Rex Arbogast)

In foul territory, Chicago Cubs first baseman Anthony Rizzo (44) and catcher Welington Castillo collide as they try to catch a pop-up off the bat of New York Mets' Rick Ankiel during the ninth inning of a baseball game on Friday, May 17 2013, in Chicago. The Mets won 3-2. (AP Photo/Charles Rex Arbogast)

New York Mets' Rick Ankiel, right, scores past Chicago Cubs catcher Welington Castillo on a hit by Matt Harvey, as the throw from left fielder Alfonso Soriano pulls Castillo away from home during the seventh inning of a baseball game Friday, May 17, 2013, in Chicago. (AP Photo/Charles Rex Arbogast)

Colorado Rockies left fielder Carlos Gonzalez misses a double by Chicago Cubs' Welington Castillo during the ninth inning of a baseball game in Chicago, Tuesday, May 14, 2013. Colorado won 9-4. (AP Photo/Paul Beaty)

CHICAGO, IL- MAY 14: Left fielder Carlos Gonzalez #5 of the Colorado Rockies cannot get to a leadoff double hit by Welington Castillo (not pictured) of the Chicago Cubs in the ninth inning on May 14, 2013 at Wrigley Field in Chicago, Illinois. (Photo by Brian Kersey/Getty Images)

CHICAGO, IL- MAY 14: Troy Tulowitzki #2 of the Colorado Rockies hits an RBI double, scoring Carlos Gonzalez (not pictured) as Welington Castillo #53 of the Chicago Cubs catches during the fifth inning on May 14, 2013 at Wrigley Field in Chicago, Illinois. (Photo by Brian Kersey/Getty Images)

Colorado Rockies' Todd Helton left, is tagged out by Chicago Cubs catcher Welington Castillo at home plate during the second inning of a baseball game in Chicago, Tuesday, May 14, 2013. (AP Photo/Paul Beaty)

Colorado Rockies' Todd Helton left, is tagged out by Chicago Cubs catcher Welington Castillo at home plate during the second inning of a baseball game in Chicago, Tuesday, May 14, 2013. (AP Photo/Paul Beaty)

CHICAGO, IL - MAY 14: Catcher Welington Castillo #53 of the Chicago Cubs tags out Todd Helton #17 of the Colorado Rockies at home plate after Helton tried to score on a single hit by Josh Rutledge (not pictured) during the second inning on May 14, 2013 at Wrigley Field in Chicago, Illinois. (Photo by Brian Kersey/Getty Images)

CHICAGO, IL - MAY 14: Catcher Welington Castillo #53 of the Chicago Cubs tags out Todd Helton #17 of the Colorado Rockies at home plate after he tried to score on a single hit by Josh Rutledge #14 during the second inning on May 14, 2013 at Wrigley Field in Chicago, Illinois. (Photo by Brian Kersey/Getty Images)

Chicago Cubs' Carlos Marmol left, and Welington Castillo celebrate the Cubs 9-1 victory over the Colorado Rockies after a baseball game Monday, May 13, 2013, in Chicago. (AP Photo/Jim Prisching)

Chicago Cubs relief pitcher Kevin Gregg (63) celebrates with Chicago Cubs catcher Welington Castillo (53) after they defeated the Washington Nationals 2-1 in the National League MLB baseball game Sunday, May 12, 2013, in Washington. The Cubs won 2-1. (AP Photo/Nick Wass)

Washington Nationals' Kurt Suzuki, right, reacts to home plate umpire John Tumpane, left, after he was called out on strikes during the ninth inning of a baseball game against the Chicago Cubs, Sunday, May 12, 2013, in Washington. Also seen is Chicago Cubs catcher Welington Castillo at center. The Cubs won 2-1. (AP Photo/Nick Wass)

Chicago Cubs' Welington Castillo pauses on the ground after he was hit by a pitch during the sixth inning of a baseball game against the Washington Nationals, Saturday, May 11, 2013, in Washington. The Cubs won 8-2. (AP Photo/Nick Wass)

Chicago Cubs' Welington Castillo pauses on the ground after he was hit by a pitch during the sixth inning of a baseball game against the Washington Nationals, Saturday, May 11, 2013, in Washington. The Cubs won 8-2. (AP Photo/Nick Wass)