of Switzerland was beaten in the 2nd round of the ATP Masters 1000 event in Shanghai China by the world number 1 Rafael Nadal.
Wawrinka came into the tournament in good form having last month reached the quarter final of the US Open in Flushing Meadows New York beating Andy Murray and Sam Querrey along the way before losing in 5 sets in the last 4 to Mikhail Youzhny.
Nadal just proved far too strong in all departments today as he won the match in straight sets 6-4 6-4.
Nadal won a 5th French Open title in Paris this summer when he beat the world number 5 Robin Soderling of Sweden in straight sets.
The Spaniard went on to win a 2nd Wimbledon title this summer and a few weeks ago he completed the career Grand Slam by winning the US Open for the 1st time in his career.