Chicago Cubs' Travis Wood delivers a pitch against the Houston Astros in the first inning of a baseball game Wednesday, Sept. 12, 2012, in Houston. (AP Photo/Pat Sullivan)

Houston Astros' Fernando Abad delivers a pitch against the Chicago Cubs in the first inning of a baseball game Wednesday, Sept. 12, 2012, in Houston. (AP Photo/Pat Sullivan)

Chicago Cubs' Alfonso Soriano heads into the dugout after hitting a solo home run against the Houston Astros in the fifth inning of a baseball game Wednesday, Sept. 12, 2012, in Houston. (AP Photo/Pat Sullivan)

Houston Astros shortstop Jed Lowrie (4) jumps to avoid a sliding Chicago Cubs' Darwin Barney (15) inning of a baseball game Wednesday, Sept. 12, 2012, in Houston. Barney was out but broke up the possible double play attempt. (AP Photo/Pat Sullivan)

Chicago Cubs' Alfonso Soriano (12) is congratulated by third base coach Pat Listach (4) on a solo home run in the fifth inning of a baseball game against the Houston Astros Wednesday, Sept. 12, 2012, in Houston. (AP Photo/Pat Sullivan)

Houston Astros trainers help relief pitcher Mickey Storey, center, off the field after he was hit by a line drive from Chicago Cubs' Dave Sappelt in the eighth inning of a baseball game Wednesday, Sept. 12, 2012, in Houston. (AP Photo/Pat Sullivan)

Houston Astros catcher Chris Snyder, right, checks on relief pitcher Mickey Storey (65) after he was hit in the face by a line drive from Chicago Cubs' Dave Sappelt in the eighth inning of a baseball game Wednesday, Sept. 12, 2012, in Houston. (AP Photo/Pat Sullivan)

Houston Astros' J.D. Martinez reacts to strike two on his way to striking out to end the eighth inning with the bases loaded in of a baseball game against the Chicago Cubs Wednesday, Sept. 12, 2012, in Houston. (AP Photo/Pat Sullivan)

Chicago Cubs closing pitcher Carlos Marmol reacts to the final out against the Houston Astros in a baseball game Wednesday, Sept. 12, 2012, in Houston. The Cubs won 5-1. (AP Photo/Pat Sullivan)

There are few fans and no frenzy in this section of the ballpark during the third inning of a Houston Astros baseball game against the Chicago Cubs Wednesday, Sept. 12, 2012, in Houston. (AP Photo/Pat Sullivan)

El dominicano Alfonso Soriano, de los Cachorros de Chicago, regresea a la cueva luego de batear un jonrón frente a los Astros de Houston, el miércoles 12 de septiembre de 2012 (AP foto/Pat Sullivan)