https://www.fogolf.com/1185845/back-injury-forces-rory-mcilroy-out-of-arnold-palmer-invitational-lwos-golf/ Back Injury Forces Rory McIlroy Out of Arnold Palmer Invitational – LWOS Golf #ArnoldPalmerInvitational #Golf #GolfNews #MastersTournament #RoryMcilroy #ThePlayersChampionship