It takes a lot of skill to beat a Top Ten tennis player. It also takes a lot of skill to beat one who has won Grand Slams on that particular surface. It takes a completely different set of skill entirely to beat three such Grand Slam-winning Top Ten players, all while marching on the road to a Masters 1000 title.
Meet Jo-Wilfried Tsonga. The Frenchman is not exactly a household name, but he has had some degree of success in the past, contesting the final of the 2008 Australian Open as well as making showings in the semifinals of Wimbledon and the French Open. He holds a career 11 titles, including two Masters 1000 titles, and spent the better part of 2013 within the lower levels of the Top Ten.
His 2014 season prior to Montreal, however, has been less than satisfactory. He failed to win a single title, and produced sub-par fourth round showings in the first three Grand Slams of the year. As a result, Tsonga dropped down to World No. 15, finally falling out of the Top Ten for the first time in nearly a season.