Cameron Norrie's Australian Open run came to an end in the fourth round when he went down in five sets to Alexander Zverev.
Novak Djokovic continued his march in Melbourne when he reached Roger Federer's record of 58 grand slam quarterfinals on Sunday.
Novak Djokovic kept his Australian Open title defence on track with a gritty performance in Melbourne on Wednesday.
Andy Murray conceded that the curtain is closing on his career after a disappointing defeat to Tomas Martin Etcheverry at the Australian Open on Monday.
Daniil Medvedev lost the first set but ultimately came out on top after his opponent retired in his opening match at the Australian Open on Monday.
American tennis legend John McEnroe suggests that Spaniard Rafael Nadal may retire if an injury occurs at the French Open following his return to the ATP Tour.