US Open day 8: Djokovic tops Kohlschreiber into quarters

Updated: 2014-09-02 08:24

(Agencies)

US Open day 8: Djokovic tops Kohlschreiber into quarters

Jo-Wilfried Tsonga (FRA) returns to Andy Murray (GBR) on day eight of the 2014 US Open tennis tournament at USTA Billie Jean King National Tennis Center, September 1, 2014.[Photo/Agencies]