Getty Images Rory McIlroy withdrew from the Arnold Palmer Invitational on Saturday due to muscle spasms in his back. While he initially planned to appear in Ponte Vedra Beach, Florida, on Tuesday to begin his title defense at The Players…

Tiger Woods underwent lumbar disc replacement surgery in his lower back after experiencing pain and a lack of mobility, the 15-time major golf champion announced on Saturday.Woods said he had the successful operation on Friday in New York at the…