Rory McIlroy is bidding to join an exclusive club of players who have won all four major titles by winning the Masters at Augusta National this week.
The world No 1 took a four-shot lead into the final round in 2011 only to collapse to a closing 80 and finish 10 shots behind winner Charl Schwartzel.
He bounced back two months later to win the US Open and, after winning the US PGA in 2012, claimed his first Open Championship at Hoylake last year and followed that with a second US PGA title.
Phil Mickelson, Arnold Palmer and Tom Watson are among the players to have won three legs of the grand slam, while the likes of Nick Faldo and Seve Ballesteros only tasted success in either the Open or the Masters.
If McIlroy were to secure a fifth major victory at Augusta this week, he'd take his place alongside some of the sports all-time greats.
Jack Nicklaus - 18 majors (Masters 6, US Open 4, Open 3, PGA 5)
Nicklaus completed the first of three career grand slams at the age of 26 with victory in the Open at Muirfield. He was also runner-up in a major 19 times and won his last title in the 1986 Masters at the age of 46.
Tiger Woods - 14 majors (Masters 4, US Open 3, Open 3, PGA 4)
Woods completed the first of two career grand slams aged 24 in the 2000 Open at St Andrews on his way to achieving the 'Tiger Slam' of 2000 US Open, Open and US PGA and the 2001 Masters.
Ben Hogan - 9 majors (Masters 2, US Open 4, Open 1, PGA 2)
Hogan was 40 when he completed his slam by winning the only Open he ever played, having already won the Masters and US Open. He could not play the US PGA that year due to a clash of dates with the Open.
Gary Player - 9 majors (Masters 3, US Open 1, Open 3, PGA 2)
The only non-American on the list, Player completed the slam aged 29 in the 1965 US Open, the only time he won the event.
Gene Sarazen - 7 majors (Masters 1, US Open 2, Open 1, PGA)
Sarazen completed the slam aged 33 by winning the Masters in 1935, having missed the inaugural tournament the year before due to a "prior commitment" to play an exhibition match in South America.
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