greatest legends, the king, the black knight, the golden bear, all wowing the crowds, and the favorite moment was wednesday. 75-year-old jack nicklaus hit his first hole-in-one in 56 years of playing here. take a look. >> come on, come on, come on, jack! yes! >> amazing. arnold palmer could not play in the event this year due to a dislocated shoulder, but the 85-year-old is still very much a presence here at augusta. a little earlier, he stopped by the set to give insight into an event he knows better than anyone. well, you're the expert, winning four masters over your career. what are the leaders thinking in the final weekend? >> well, i think, first of all, they are concerned about their game, and what that boils down