John Millman turns sights on Novak Djokovic after Roger Federer shock

• Australian meets Wimbledon champion in US Open quarters• Millman almost quit tennis for office job five years ago John Millman's nerveless destruction of Roger Federer may have sent shockwaves through the US Open and wider sporting world yet not everyone was surprised. The unheralded Australian who almost retired from the sport five years ago and was poised to swap the tennis court for an office job, was languishing at 235 in the world 12 months ago. Related: John Millman: Federer vanquish...