Roger Federer wins sixth Australian Open title

Roger Federer survived a second set 'freeze' and an onslaught from Croatia's Marin Cilic to claim a record-equalling sixth Australian Open title on Rod Laver Arena on Sunday.

The Swiss maestro wobbled at times in the face of some fierce resistance before winning 6-2 6-7(5) 6-3 3-6 6-1.

With the stadium roof closed to keep out the withering Melbourne heat, the 36-year-old grabbed the first set in 24 minutes as a 20th grand slam title looked a formality.