All in the family: Pole-vault phenom Mondo Duplantis signs with LSU track and field team

Considering his family’s athletic background, there was little doubt pole-vaulting phenom Armand “Mondo” Duplantis would attend LSU. The world junior record holder made it official Wednesday, joining the Tigers’ track and field program on the first day student-athletes could sign a national letter of intent with the college of their…