Greg Norman currently leads the 137th Open Championship at Royal Birkdale by one stroke. Should he win on Sunday, the striking Aussie would be the oldest major champion at the age of 53 years, 5 months and 11 days.

The current oldest? The late Julius Boros. He was 48 years, 4 months and 18 days old when he won the 1968 PGA Championship.

Here's a look at the top-10 oldies but goodies:

Name	Age	Major
Julius Boros	48 years, 4 months, 18 days	1968 PGA Championship
Tom Morris Sr.	46 years, 3 months, 9 days	1867 Open Championship
Jack Nicklaus	46 years, 2 months, 23 days	1986 Masters
Jerry Barber	45 years, 3 months, 6 days	1961 PGA Championship
Hale Irwin	45 years, 15 days	1990 U.S. Open
Lee Trevino	44 years, 8 months, 18 days	1984 PGA Championship
Roberto de Vicenzo	44 years, 3 months, 3 days	1967 Open Championship
Raymond Floyd	43 years, 9 months, 11 days	1986 U.S. Open
Ted Ray	43 years, 4 months, 16 days	1920 U.S. Open
Julius Boros	43 years, 3 months, 20 days	1963 U.S. Open