Federer wins London opener, Harrison and Venus upset Kontinen and Peers

November 12, 2017 6

A big upset took place in the opening session of the 2017 World Tour Finals. No, it did not involve Roger Federer. Prior to Federer taking the singles court on Sunday afternoon, the eighth-seeded doubles pairing of Ryan Harrison and Michael Venus took down the world No. 2 team featuring Henri Kontinen and John Peers 6-4, 7-6(8). […]