Novak Djokovic beat qualifier David Ferrer in straight sets . Albert Ramos-Vinolas is also into the next round after his opponent retired . Jo-Wilfried Tsonga had to be alert as he was pushed by Jan-Lennard Struff .
Novak Djokovic beat qualifier Albert Ramos-Vinolas in straight sets . David Ferrer is also into the next round after his opponent retired . Jo-Wilfried Tsonga had to be alert as he was pushed by Jan-Lennard Struff .