Article Photos: No timetable for Santana, who could head to DL

Houston Astros' Carlos Pena celebrates after hitting a 2-run home run during the fourth inning of an exhibition spring training baseball game against the New York Mets Saturday, March 9, 2013, in Port St. Lucie, Fla. (AP Photo/Jeff Roberson)

Houston Astros' Carlos Pena celebrates after hitting a 2-run home run during the fourth inning of an exhibition spring training baseball game against the New York Mets Saturday, March 9, 2013, in Port St. Lucie, Fla. (AP Photo/Jeff Roberson)