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Rory McIlroy took a four stroke lead into the final round of the Masters on Sunday.
Even I stated, on this very website, that he would win in a walk.
There were signs early in the round that trouble was afoot. The bogey on one. The bogey on five.
But it looked like he was going to hold it together.
Then he played the tenth hole.
The trouble started with a drive that was so far left that even I, a man who has watched the Masters religiously since Jack Nicklaus stormed back and won his sixth 25 years ago, I didn't know that there were cabins over there.
He did the best he could by getting the ball back out of the trees, but he still had something in the area of two miles to the green for his third.
Left of the green after three, still left of the green after four, on the green in five and two putts later and a collapse of epic proportions was on.
He would bogey 11, double-bogey 12 and manage to play the last six holes one over by making five pars and a bogey on 15.
Those five pars and a bogey tell you a lot about Rory McIlroy. It would have been easy to simply walk off the course, or just to forget it all and slap it around, but he didn't do that.
Instead, McIlroy showed real grit and continued to play a round that I'm sure must have been painful to finish.
He was the best player on the course for three and a half days and you can be sure he will learn from this. He will grow from this, and he will, without a doubt, win a major.
And it will be soon.