Rory McIlroy withdraws from Arnold Palmer Invitational presented by Mastercard before Round 3 due to back injury PGA TourRory McIlroy withdraws from Bay Hill with back spasm as golf enters a big stretch TSNBack injury sees McIlroy withdraw at Bay Hill Yahoo Sports CanadaRory McIlroy withdraws from Bay Hill with back spasms SportsnetRory McIlroy withdraws before Saturday tee time at Arnold Palmer Invitational Golf Channel
