Houston Astros Lance Berkman reacts after being picked off at first base during the seventh inning of an interleague baseball game against the Texas Rangers in Arlington, Texas, Friday, May 16, 2008. The Rangers won 16-8.

Texas Rangers Ian Kinsler, right, celebrates with teammate Josh Hamilton (32) during the seventh inning of an interleague baseball game against the Houston Astros in Arlington, Texas, Friday, May 16, 2008. Kinsler scored on a double by teammate Michael Young.

Texas Rangers' Michael Young hits a RBI double during the seventh inning of an interleague baseball game against the Houston Astros, in Arlington, Texas, Friday, May 16, 2008.

Houston Astros manager Cecil Cooper (15) argues a call at home plate with umpire Angel Campos (84) as umpire Marty Foster, right, looks on during the seventh inning of an interleague baseball game against the Texas Rangers in Arlington, Texas, Friday, May 16, 2008. Cooper was ejected from the game for arguing the call.

Texas Rangers Ian Kinsler, center, scores as Houston Astros catcher J.R. Towles, right, places the tag with home plate umpire Angel Campos, left, looking on and Astros pitcher Wesley Wright in the background during the seventh inning of an interleague baseball game in Arlington, Texas, Friday, May 16, 2008. Kinsler scored on a double by teammate Michael Young.

Houston Astros' Carlos Lee (45) is tagged out at home plate by Texas Rangers catcher Jarrod Saltalamacchia (25) during the fifth inning of an interleague baseball game in Arlington, Texas, Friday, May 16, 2008. Lee was attempting to score on a double by teammate Darin Erstad.

Houston Astros manager Cecil Cooper, left, pulls starting pitcher Shawn Chacon (30) from the mound during the fourth inning of an interleague baseball game against the Texas Rangers in Arlington, Texas, Friday, May 16, 2008.

Houston Astros starting pitcher Shawn Chacon watches his throw during the first inning of an interleague baseball game against the Texas Rangers in Arlington, Texas, Friday, May 16, 2008.

Texas Rangers starting pitcher Sidney Ponson watches his throw during the first inning of an interleague baseball game against the Houston Astros in Arlington, Texas, Friday, May 16, 2008.

San Francisco Giants manager Bruce Bochy removes relief pitcher Tyler Walker as catcher Steve Holm, right, looks on during the eighth inning of a baseball game in San Francisco, Thursday, May 15, 2008. The Houston Astros won 8-7, and Walker faltered on his 32nd birthday.

San Francisco Giants pitcher Alex Hinshaw makes his major league debut and throws against Houston Astros' Michael Bourn during the eighth inning of their baseball game in San Francisco, Thursday, May 15, 2008. Houston won the game 8-7.

Houston Astros' Lance Berkman smiles while walking back to the dugout during the second inning of their baseball game against the San Francisco Giants in San Francisco, Thursday, May 15, 2008. Later in the game Berkman hit his 15th home run of the season.

San Francisco Giants pitcher Vinnie Chulk, bottom, walks back to the mound after giving up a home run to the Houston Astros Lance Berkman, top, during the ninth inning of their baseball game in San Francisco, Thursday, May 15, 2008. Houston won the game, 8-7.

Houston Astros closing pitcher Jose Valverde celebrates after the last out is made by the San Francisco Giants in the ninth inning of their baseball game in San Francisco, Thursday, May 15, 2008. Houston won the game, 8-7.

Houston Astros' Lance Berkman, left, is greeted by teammate Geoff Blum, right, after hitting a home run off San Francisco Giants pitcher Vinnie Chulk during the ninth inning of their baseball game in San Francisco, Thursday, May 15, 2008.

Houston Astros' Lance Berkman watches his home run off San Francisco Giants pitcher Vinnie Chulk during the ninth inning of a baseball game in San Francisco, Thursday, May 15, 2008.

Houston Astros' Darin Erstad, center, is greeted by teammates Dave Borkowski, left, and Mark Loretta, right, after hitting a three run home run during the eighth inning of air baseball game against the San Francisco Giants in San Francisco, Thursday, May 15, 2008. In the background is the Astros' Geoff Blum.

San Francisco Giants' Aaron Rowand, right, is greeted in the dugout after scoring against the Houston Astros in the third inning of a baseball game in San Francisco, Thursday, May 15, 2008. Rowand scored on a double by John Bowker.

Two fans keep cool in the 90-degree heat, behind home plate at AT&T Park during the first inning of the San Francisco Giants' baseball game against the Houston Astros in San Francisco, Thursday, May 15, 2008.

Houston Astros' Lance Berkman, right, steals second base as San Francisco Giants second baseman Emmanuel Burriss, left, waits for the throw during the second inning of their baseball game in San Francisco, Thursday, May 15, 2008.

San Francisco Giants' Omar Vizquel dives safely into third base against the Houston Astros during the first inning of a baseball game in San Francisco, Thursday, May 15, 2008. Vizquel advanced from first on a single by Randy Winn.

San Francisco Giants starting pitcher Tim Lincecum throws against the Houston Astros in the first inning of a baseball game in San Francisco, Thursday, May 15, 2008.

Houston Astros' Miguel Tejada, right, hits an RBI-single in the first inning of a baseball game against the off San Francisco Giants, Wednesday, May 14, 2008, in San Francisco.

Houston Astros relief pitcher Jose Valverde gestures to the crowd after recording the last out of the game against the San Francisco Giants in the ninth inning of a baseball game in San Francisco, Wednesday, May 14, 2008. Houston won 6-3.

Houston Astros' Brad Ausmus, right, is greeted at home plate by teammate Hunter Pence after Ausmus' two-run home run against the San Francisco Giants in the eighth inning of a baseball game in San Francisco, Wednesday, May 14, 2008.

San Francisco Giants' Aaron Rowand, right, is greeted at the plate by teammate John Bowker after Rowand's two-run home run in the second inning of a baseball game against the Houston Astros, Wednesday, May 14, 2008, in San Francisco.

Houston Astros' Lance Berkman, left, is greeted at the plate by teammate Miguel Tejada after Berkman's two-run home run off San Francisco Giants pitcher Patrick Misch in the first inning of a baseball game in San Francisco, Wednesday, May 14, 2008.

Houston Astros second baseman Kazuo Matsui, left, forces out San Francisco Giants' Jose Castillo after a ground ball by Emmanuel Burriss in the second inning of a baseball game in San Francisco, Wednesday, May 14, 2008. Burriss was safe at first base.

Houston Astros' Lance Berkman hits a two-run home run as San Francisco Giants catcher Bengie Molina, left, look on in the first inning of a baseball game Wednesday, May 14, 2008 , in San Francisco.

Houston Astros pitcher Brian Moehler throws to the San Francisco Giants in the first inning of a baseball game in San Francisco, Wednesday, May 14, 2008.