Ceremonial first pitch by the Bushes

Former US President George W. Bush (L) and Texas Rangers President Nolan Ryan (R) stand as Texas Rangers' Mitch Moreland warms up in the seventh inning during Game 3 of Major League Baseball's World Series against the San Francisco Giants in Arlington, Texas, Oct 30, 2010. [Photo/Agencies]

Former US President George H.W. Bush (R) watches as his son, former President George W. Bush, throws a ceremonial first pitch prior to the start of Game 4 of Major League Baseball's World Series between the San Francisco Giants and the Texas Rangers, in Arlington, Texas, Oct 31, 2010. [Photo/Agencies]