Woods has already vastly improved on his performance at The Masters previous year, where he was three-over par at after two rounds.
Will Patrick Reed defend his title?
But after producing a miracle recovery shot to find the green, Woods was almost taken out in sensational fashion by a security guard who slid in, after slipping on the mud caused by earlier rain while rushing to protect the superstar. All these questions will be answered in the coming days.
Brooks Koepka hits out of the trees on the 17th hole on his way to a share of the lead after two rounds of the Masters at Augusta National. When he mounted the 18th tee here 28 years ago, he picked out his Persimmon driver and smashed his tee-shot clean over the left-hand bunker.
"I felt like the first round was kind of where I was on the weekend last week and then I thought today was a bit better, " Spieth said.
The former world number one winced and walked gingerly before trying to stretch it out for a few seconds and then got back to work as he fired a four-under-par 68 to sit one shot behind of the five co-leaders.
Molinari holed a couple of clutch putts in his five opening pars before picking up shots at the sixth and eighth as he cruised to the turn in 34, and he came close to a rare ace at the 12th to set up the birdie that ignited his charge to the top of the leaderboard.
The guard clipped Woods' foot and ankle, leaving Woods hopping away in pain before making his way to the green - where he pulled off a long putt to ice a truly remarkable birdie.
Finau hit his second shot on the par-5 No. 8 to within eight inches of the cup for an easy eagle putt.
"Accidents happen, we move on", Woods said of the incident, confirming he suffered no major damage from the guard's boot. After a flawless opening round, Koepka had two bogeys and a double in his first six holes on Friday but the twice U.S. Open champion was able to regain his composure, steadying himself with six straight pars from the ninth. "I'm like, 'It's 10 off the lead and 60 right?' He goes, 'No, it's 50.' And I'm like, 'Well, good thing I probably didn't know that"'.
Mickelson stumbled to a 73 but still was only three shots behind.
Justin Hading, who surged to the top of the leaderboard for much of Round 1, was still in the hunt at six-under par. He was only seven shots behind, but he had 35 players in front of him.