Who knocked Andy Murray out of the 2013 US Open in the quarter-finals? (Surname only will do)
Stanislas Wawrinka (Stanislas) WAWRINKA Wawrinka Stan Wawrinka Stanislas Warwinka
wawrinka stan wawrinka stanislas warwinka stanislas wawrinka
stanislas wawrinka
WikipediaEntity
(Stanislas) WAWRINKA