Phil Mickelson withdraws from Farmers Insurance Open with back pain - SB Nation

Phil Mickelson withdraws from Farmers Insurance Open with back pain SB Nation Phil Mickelson withdrew Friday night from the Farmers Insurance Open due to pain in his lower back, according to the Associated Press' Doug Ferguson. Friday, after nursing his sore muscles to a 1-over 73 on Torrey Pines' South Course, the world No.