Tiger Woods retires during final round of BMW - Bridgestone Invitational . Woods appeared to jar his back playing an awkward shot out of the bunker on the second hole . Jarred his back shooting out of the green on the second hole . Woods only recently returned from back surgery three months ago . He 's now a contender for the PGA Championship and Ryder Cup .
Tiger Woods retires during final round of BMW - Bridgestone Invitational . Jarred his back shooting out of the green on the second hole . Woods only recently returned from back surgery three months ago . He 's now a contender for the PGA Championship and Ryder Cup .