 Complete the following phrase:  This is a list of the main career statistics of Swiss professional tennis player, Stan Wawrinka. To date, Wawrinka has won sixteen ATP singles titles, including three Grand Slam singles titles at the 2014 Australian Open, the 2015 French Open, and the 2016 US Open, and one ATP Masters 1000 title at the 2014 Monte-Carlo Rolex Masters. He was also a semifinalist at the 2013 US Open, the 2015 Australian Open, the 2015 US Open, and the 2013, 2014 and 2015 ATP World Tour Finals. He also has reached the quarterfinals at 2014 and 2015 Wimbledon. Wawrinka also won a gold medal partnering Roger Federer in mens doubles for Switzerland in the 2008 Summer Olympics in Beijing, beating Swedish team Simon Aspelin and Thomas Johansson. In 