Focused Gulbis reaps rewards

Ernests Gulbis has learned a lesson from Novak Djokovic and is determined to focus his energy on tennis.

The fruits of the Latvian's change of direction, after years of bad choices and misspent evenings, were seen at the French Open on Sunday when he sealed the biggest win of his career with a five-set victory over Roger Federer in the fourth round.

Not that vanquishing the former champion 6-7 (5), 7-6 (3), 6-2, 4-6, 6-3 was devoid of the old Gulbis style: he smashed and stomped on a racket and then gave it to a young boy in the crowd as a memento.