Mental strength still a work in progress for Bubba

PACIFIC PALISADES, California (Reuters) - Moments after winning his ninth PGA Tour title at the Northern Trust Open on Sunday, Bubba Watson reflected on the work he still needs to do to improve his mental approach to the game.

One of golf's most intriguing characters, the American left-hander is best known for his power hitting and extraordinary shot-making, and also a tendency to allow his mind to wander while he is out on the course or speaking to the media.