Tiger Woods withdraws because of tightness in lower backSAN DIEGO (AP) - In an ominous start to his season, Tiger Woods walked off the course after 11 holes Thursday at the Farmers Insurance Open because of tightnessSI Staff|Share on FacebookShare on XAdd us as a preferred sourceAdd us as a preferred source on GoogleFollowLoading recommendations... Please wait while we load personalized content recommendationsPublished Feb 7, 2015 | Modified Feb 7, 2015SI STAFFShare on FacebookShare on X