The win made Federer the first player ever to win five titles at three different Grand Slams
The 35-year-old will now compete for his 5th crown in Australian Open final on Sunday
I'm happy that I won Hopman Cup and looking forward to Australian open, says Roger Federer
He received a surgery to his left knee in February after being ousted in the semifinals in Australian Open
The 17-time Grand Slam champion said that he was not 100% fit, forcing him to pull out of Roland Garros this year
Novak Djokovic, an 11-time major champion, retains his massive lead on his closest challengers at the top of the rankings after claiming a record 29th Masters title