Nice move from Roger Federer who with a great backhand smash against Marin Cilic in London (ATP Finals - Masters).

Ryan Harrison traps Grigor Dimitrov's interview with the complicity of the interviewer in London (ATP Finals - Masters).

Perfect match point from Grigor Dimitrov to finish the job against David Goffin in London (ATP Finals - Masters).

Two superb rallies between Roger Federer and Alexander Zverev at the end of the first of their round robin match in London (ATP Finals - Masters).

Jack Sock slides incredibly to get this ball and make the difference against Marin Cilic in 3rd set tie-breaker in London (ATP Finals - Masters).