The Texan only celebrated his 24th birthday in July, but he already has the Masters, US Open and British Open to his name.
Of every golfer to ever play the game, only Jack Nicklaus has won three different majors at such an early stage in his career. Only Tiger Woods has completed the set before his 25th birthday.
CNN Sport takes a look at the other greats that have completed a career grand slam in golf.
Bobby Jones (1930)
When Bobby Jones won every major golf championship in the same year back in 1930, the watching world struggled for words to describe the magnitude of his achievement.
It was at this moment that Oscar B Keeler — an Atlanta Journal reporter who traveled over 120,000 miles…