
Mikhail Youzhny of Russia returns the ball during the men's singles first round match against Nicolas Kicker of Argentina at the ATP Croatia Open 2017 in Umag, Croatia, on July 18, 2017. (Xinhua/Jurica Galoic)

Mikhail Youzhny of Russia returns the ball during the men's singles first round match against Nicolas Kicker of Argentina at the ATP Croatia Open 2017 in Umag, Croatia, on July 18, 2017. (Xinhua/Jurica Galoic)