Novak Djokovic celebrates his quarter-final victory over Czech Republic's Tomas Berdych with a ball boy ©Getty Images

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Djokovic was relieved to receive just a code violation after letting his racquet slip out of his hand while angrily swiping at the ground, narrowly missing a line judge ©Getty Images

Despite a brief rain delay in the third set, Djokovic returned to quickly wrap up the match ©Getty Images

Awaiting Djokovic in the last four is Austrian 13th seed Dominic Thiem, who reached his first Grand Slam semi-final by beating Belgium's David Goffin ©Getty Images

Thiem came from behind to beat Goffin in four sets ©Getty Images

Women's top seed Serena Williams moved a step closer to winning a record-equalling 22nd Grand Slam title ©Getty Images

The American demonstrated some interesting moves on her way to a 5-7, 6-4, 6-1 win against Kazakhstan’s Yulia Putintseva ©Getty Images

Former French footballer Jean-Pierre Papin (centre) was among those there to witness it ©Getty Images

Kiki Bertens will have the opportunity to stop Williams in her tracks after the unseeded Dutchwoman beat Switzerland's Timea Bacsinszky 7-5, 6-2 ©Getty Images

Bertens' victory was well received by her onlooking family ©Getty Images