<Ul> <Li> Game 4: Hailey Dawson, a seven - year - old girl from Nevada, threw out the ceremonial first pitch using a 3D printed hand . The national anthem was performed by the Houston Police Department Quartet . </Li> </Ul> <Li> Game 4: Hailey Dawson, a seven - year - old girl from Nevada, threw out the ceremonial first pitch using a 3D printed hand . The national anthem was performed by the Houston Police Department Quartet . </Li> <Ul> <Li> Game 5: Former President of the United States George W. Bush threw out the ceremonial first pitch . His father, former President George H.W. Bush handed him the ball . Justin Verlander caught the pitch . Country singer Clay Walker performed the national anthem . </Li> </Ul> <Li> Game 5: Former President of the United States George W. Bush threw out the ceremonial first pitch . His father, former President George H.W. Bush handed him the ball . Justin Verlander caught the pitch . Country singer Clay Walker performed the national anthem . </Li>

Who will be playing in this year's world series