Novak Djokovic suffered his first loss at Roland Garros in three years on Friday night, as Jannik Sinner took him out in the semi-final. The world No. 1 has yet to drop a set at this year’s French Open and now finds himself through to Sunday’s championship match after sealing a tight 6-4 7-5 7-6 (3) victory over Djokovic.

Djokovic produced the Grand Slam peak that has been the trademark of his late career, but Sinner was a mountain too high to climb.

Roddick couldn't help himself but notice Sinner's interesting tactics against Djokovic in the French Open semifinal.