Nicklaus congratulates Federer after winning Australian Open

Roger Federer is officially in Jack Nicklaus territory, as the Swiss legend captured the Australian Open crown on Sunday in Melbourne.

The win is Federer's 18th major title, a feat unrivaled in men's tennis, but it does match him with Nicklaus - who captured 18 majors over a 24-year stretch.

Following the five-set victory over Rafael Nadal, the 35-year-old received a congratulatory tweet from the golf king.

Ironically, both won their 18th major when they were considered over the hill, Nicklaus claimed the 1986 Masters at the age of 46.