Juan Martin del Potro has upset 20 year old Alexander Zverev in three strong sets. He will face Viktor Troicki who finally has turned it around after struggling recently for a spot in the semifinals.
Del Potro-Zverev MTF General Messages Thread
Del Potro-Zverev ATP Match Article
Other results from Shanghai:
 Rafael Nadal def. Fabio Fognini 6-3 6-1
 Grigor Dimitrov def.  Sam Querrey 6-3 7-6(3)
 Roger Federer def. [Q] Alexandr Dolgopolov 6-4 6-2
Viktor Troicki def.  John Isner 6-4 7-6(4)
 Marin Cilic def. Steve Johnson 7-6(1) 6-4
Richard Gasquet def. Gilles Simon 7-5 6-7(5) 6-3
Albert Ramos-Vinolas def. Jan-Lennard Struff 7-6(4) 6-4
Almost every day, one result will be able to be directly viewed from the homepage. If you click on the home-page news, you can see other notable information and direct links to the MTF General Messages threads.
Last update: 8:06 PM EST, 1:06 PM CET