Renowned coach Butch Harmon feels Tiger Woods is the only man capable of pulling off a Grand Slam of the majors, but feels he will need a hefty slice of luck to achieve it.
Harmon, who coached Woods when he achieved his "Tiger Slam" in 2001, feels there are many factors that could conspire to thwart Woods.
However, given Woods' incredible current form - the American has won ten of his last 11 events - he admits the Grand Slam is a distinct possibility and feels Tiger has both the game and mental strength to achieve the unprecedented feat.
"Obviously he's the only guy in the game who can do that and I say that only because if he won the first three the pressure would be so enormous on the fourth and he could handle that pressure," Harmon told Sky Sports.
"To win the Grand Slam you not only have to play great you have to have a lot of luck.
"You have to have a lot of luck on the weather, when your tee-times are, whether you're in the morning or in the afternoon, if you catch a bad weather day it can take you right out of the tournament.
"But having said that he's won every tournament he's played in for the last eight months, so until someone starts beating him who knows what he is going to do."
Undefeated season
With Woods having won all six of the events he has entered thus far in 2008, there has even been some talk of an undefeated season.
Surely far too much to ask? Harmon thinks so, but, given his knowledge of the world number one, even refuses to rule that out.
"The odds would tell you he can't, but every time Tiger goes to an event his main goal is to win," he added.
"That's what he's there to do and he prepares for that, he prepares beautifully to win.
"He's comes not just to compete or finish high on the money-list in the tournament, he comes with only one thought to win only, so nothing he does surprises me.
"Do I think it's possible? Anything's possible. Is it Probable? Probably not."
Harmon now works with world number two Phil Mickelson and feels the game is crying out for the two men to go head-to-head on a more regular basis.
At present even Mickelson is struggling to live with the standards being set by Woods, but Harmon feels this week's CA Championship could just see Lefty bring an end to his rival's recent dominance.
"The whole golf world wants to see a Mickelson-Woods duel on Sunday in a major or Sunday in a World Golf Championship and we may just get it this week," he concluded.




