Boy with brain tumor will caddie for Kevin Streelman in Masters par-3 tournament

Rory McIlroy picked One Direction's Niall Horan to caddie for him at Wednesday's Masters par-3 tournament.Kevin Streelman's choice of caddie is much cooler. Ethan Couch, an 11-year-old boy from Alberta who has an benign yet inoperable brain tumor, will be on Streelman's bag Wednesday.