Roger Federer has crashed out of the Cincinnati Masters.
The seven time winner suffered a shock straights sets defeat to 21-year-old Russian qualifier Andrey Rublev.
The third round win means Rublev will now face compatriot Daniil Medvedev in the quarter-finals.
Meanwhile world number one Novak Djokovic is through to the final eight after an easy win over Pablo Carreño Busta.

India's Iyer taken to hospital after fielding injury
Norris unfazed by crowd boos after winning in Mexico
Mbappe and Bellingham strike as Real Madrid edge Barcelona 2-1 in fiery El Clasico
Brazilian teen Fonseca beats Fokina to win biggest career title in Basel
Arsenal go clear after win over Palace, Man City slip up at Villa
