September 2nd, 2014 - 02:35 GMT Wawrinka battles past Robredo, will face Nishikori in US Open quarterfinals Australian Open champion Stanislas Wawrinka fought off two set points in the critical third set to register a 7-5, 4-6, 7-6 (7), 6-2 win over Spain's Tommy Robredo and advance to the quarterfinals of the US Open. Read more
