Four of the 10 highest ranked stars, including Roger Federer and Stan Wawrinka, … November 29, 2017 admin Leave a comment Watch Videos @ http://bit.ly/2zELp7l Four of the 10 highest ranked stars, including Roger Federer and Stan Wawrinka, will not take part at tthe Olympics, and reigning gold medalist Andy Murray is less than impressed. Source by aliceseamans