What does Lefty need to do to win?
And what's the best-case scenario for Tiger?
Well, here we are. After 54 holes at Augusta National, a single round separates one golfer from winning 2012's first major championship.
So who will withstand the pressure of those final 18 holes at the Masters? Is Phil Mickelson the most likely person to be adding another green jacket to his wardrobe? Our experts analyze all that and more in our latest edition of Masters Four-Ball.
1. What's the most important thing for Phil Mickelson to do Sunday to win a fourth green jacket?
Farrell Evans, ESPN.com senior golf writer: Phil has to keep doing what's he's doing. The conditions are going to be perfect for scoring. Another 30 on the back nine would sew up his fourth green jacket.
Bob Harig, ESPN.com senior golf writer: Hit more greens. Lefty has hit only 32 of 54 greens, which ranks tied for 37th. He's making a ton of putts and will run away with the tournament if he gives himself more chances.
Mike Tirico, ESPN TV golf host: Continue driving the ball the way he did on Saturday. I thought he drove the ball exceptionally, especially on that second nine. To continue to drive the ball like that can give him the opportunity to make choices to be aggressive or play cautiously depending on what the leaderboard calls for.
Gene Wojciechowski, ESPN.com senior national columnist: Keep putting like the hole is the size of a garbage bin opening. That's been the difference for Phil this week.
2. How many strokes back can the winner come from on Sunday?
Farrell Evans: One of the four players at 4 under could go out and shoot a 64 and get to 12 under and win this thing.
Bob Harig: Five would seem to be the maximum. There are nine players within five strokes of leader Peter Hanson, and even if one of them goes low it means Hanson or Mickelson would have to falter.
Mike Tirico: I think five back is going to have a tough time catching the leaders. Although not as familiar to U.S. fans, Peter Hanson has done well with the lead on the European Tour. With Mickelson and Oosthuizen and their experience in closing majors and Bubba Watson and Matt Kuchar, I think you have players in the last three groups who are not all going to back up. For minus-4 to get up there, somebody would have to kill the par-5s on the front.
Gene Wojciechowski: Anybody within five shots has a chance. After that, the percentages jump off a cliff.
3. Give us a contender and a pretender to watch for Sunday.
Farrell Evans: For a pretender, I don't think Henrik Stenson will hold up despite fighting all week. My contender is Hunter Mahan.
Bob Harig: Contender: Hunter Mahan. He's lurking, while playing some of the best golf of his career.
Pretender: Padraig Harrington. He had an impressive 68 Saturday, but even shooting another one might not be enough.
Mike Tirico: A contender to me, beside Mickelson, would be Oosthuizen. I watched every shot of his Open Championship win two years ago at St. Andrews and that swing looks good under a lot of pressure. There are no pretenders in the last three groups, so I don't think anyone outside those last three groups can win.
Gene Wojciechowski: I'm sticking with Hunter Mahan as my contender (though, five shots isn't going to be easy). No pretenders for me.
4. Best-case scenario for Tiger in the final round?
Farrell Evans: Tiger shoots 65 and gets inside the top 10. He's going to make some bogeys, though, because he's going to go at every pin.
Bob Harig: He finds a majority of fairways and greens, makes a few putts, shoots in the 60s, jumps about 25 spots from his tie for 38th position and leaves Augusta National wondering where his swing was for three days.
Mike Tirico: There's no scenario. He previously said he only plays golf tournaments to win, and there's no scenario of him winning. Maybe he can have a great Sunday like he did last year and get into the top 15, but at this stage in Tiger's career, I don't think the difference between tied for 15th and tied for 24th or tied for 34th will do anything to impact his legacy.
Gene Wojciechowski: That his private jet isn't subjected to any flight delays out of Augusta. For Tiger, he just wants to get through a full Masters round without feeling bad about his swing.
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2012 champion: Bubba Watson
Course: Augusta National Golf Club
Where: Augusta, Ga.
Yardage, par: 7,435 yards, par-72
Past champions: Complete list