Italy's world number one Jannik Sinner has said he is wary of the threat posed by his quarter-final opponent in the men's singles at Wimbledon, Jan-Lennard Struff.
    After beating Japanese qualifier Shintaro Mochizuki 6-3, 7-6(0), 6-3 on Sunday, the defending champion described Struff as "a very aggressive player" and a "big, big server.
    "I have big respect for him," Sinner added.
    "We've faced each other a couple of times.

The last time was on grass in Halle and it was a very tight match.

ALL RIGHTS RESERVED © Copyright ANSA