
Woods woes strike again —
Tiger Woods was forced to withdraw in his second PGA start of the year, suffering back spasms

New coach but problems remain —
Woods and new swing coach Chris Como are pictured in conversation ahead of the start of the Hero World Challenge in Florida, but the ex-world No.1 has struggled with his game and hit the worst round of his professional career last week.

Back at the forefront —
Como is trying to re-model Woods' swing so it causes less stress to his body, particularly his injury-prone back -- but his back problems resurfaced in San Diego this week.

Painful process —
Woods underwent back surgery in March 2014 but has continued to suffer discomfort.

Deep in thought —
Woods, whose second golf course as a designer is due to open later this year, is facing a major battle for form as well as full fitness.