Roger Federer advanced to the semi finals of the Brisbane International following a 6-4, 6-7, 6-4 win against Grigor Dimitrov on Friday.
Federer's serve in the first set was almost flawless, dropping just two pointsand he appeared to be on course with break-point chances for another straight-set victory over the young Bulgarian.After wasting a chance to serve out the second set in a nervous 10th game, Dimitrov dominated the tiebreaker and forced a decider.
After showing signs of fatigue in the second, the Swiss maestro took a quick break before the third, and then went on a roll to set up three match points in the ninth game.
Federer finally beat Dimitrov 6-4 in the third to wrap up the win and set up a semi-final encounter with Dominic Thiem.