(Reuters) - Tiger Woods, in his second round of competitive golf since returning from a chronic back injury that kept him out for almost 16 months, shot a flawless seven-under 65 at the Hero World Challenge in the Bahamas on Friday. Fourteen-times major winner Woods, who teed off alone after partner Justin Rose of Britain pulled out of the 18-man tournament with a bad back, was three-under on the front nine and four-under on the homeward stretch. After a rollercoaster opening round, Woods displayed the type of focus and form that once made him the dominant player of his generation in his second tour of the Albany course. More...