Alexander Zverev placed himself amongst the serious contenders for the Wimbledon title on Saturday, insisting that this year’s showpiece “is the most open in 20 years.”

The World No. 4 has never got past the last 16 at the All England Club. However with Roger Federer retired, Rafael Nadal resting and both Novak Djokovic and Andy Murray carrying injuries, the 27-year-old predicts a power vacuum in south-west London.