7-year-old with 3-D-printed hand to throw first pitch at Game 4 of World Series

The Houston Astros and Los Angeles Dodgers will be in the spotlight for Game 4 of the World Series. So will 7-year-old Hailey Dawson.

Hailey, a young baseball fan with a prosthetic hand made by a 3-D printer, is scheduled to throw out the first pitch ahead of Saturday's game.

A native of Nevada, Hailey has Poland syndrome, a rare birth defect that caused her to be born without three fingers on her right hand, where she wears the specially-designed prosthetic.

Hailey has already thrownthe first pitch for the Baltimore Orioles, her favorite team, and the Washington Nationals, and wants to do the honorsat every major league ballpark. A number of MLB teams, the Astros among them, offered to help her achieve her goal after her story went viral earlier this summer.

It appears Hailey received a warm welcome upon arriving to Houston on Friday.

Good luck to Hailey as she takes in the Fall Classic and checks another stadium off her first-pitch list. We'll be cheering for you.

-- Alex Tekip