Who

Jack Sock won his first big Challenger title.

Novak Djokovic

The Serbian seems very gung-ho on seizing the No. 1 ranking back from Roger Federer and played with a lot of confidence with his back against the wall in his 5-7 7-6 6-3 win over Andy Murray in the Shanghai final. Of the five match points he faced, Djokovic ripped forehand winners on three and forced two errors off the Scot