Wimbledon: Upset Potential

Say what you like. I don’t think all of the top four will make it to the semis.
 
Whether its the doubt created by Rafa’s not-quite-injured foot, Feli “having one of those days” (perhaps we should start saying “weeks”), Jo-Wilfried operating in “Slamdunk Mode”, or Tomic….being Tomic, there’s at least enough upset potential there to conceive of one upset.

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