Serena dumped in second round

A tournament of upsets got the biggest of the lot as defending champion Serena Williams sensationally lost to Spaniard Garbine Muguruza in the second round.

Williams’ 6-2 6-2 defeat was her worst in terms of scoreline in her 16-year grand slam career and will send shockwaves through the tournament, which lost Australian Open champions Stan Wawrinka and Li Na in the first round.