Andy Murray had said ahead of Australian Open that he intended to retire following the 2019 edition of Wimbledon.
Former world number one Andy Murray bowed out of the Australian Open on Monday for potentially the last time.
Andy Murray fought to the very end before losing his Australian Open first-round match 6-4, 6-4, 6-7 (5/7), 6-7 (4/7), 6-2 to Roberto Bautista Agut.
Gutsy Andy Murray lost an epic Australian Open farewell match 6-4, 6-4, 6-7 (5/7), 6-7 (4/7).
Roger Federer and Novak Djokovic are both gunning for a record seventh Australian Open crown.
Andy Murray said he would like to finish at his home Grand Slam in Wimbledon, but ruefully admitted he might not make it that far.
Novak Djokovic will start his drive to make history against a yet-to-be-decided qualifier and could meet France's Jo-Wilfried Tsonga in the second round.
Daniil Medvedev beat Andy Murray in straight sets in the Brisbane International on Wednesday.
Novak Djokovic is the favourite to dominate in 2019, after overcoming an injury-hit start to 2018 to claim the Wimbledon and US Open titles.
Three-time Grand Slam winner Murray only played six tournaments last season and arrived in Australia early to acclimatize and prepare.
The 31-year-old Scot had intended to play in Brisbane at the beginning of 2018 but was forced to withdraw with a hip injury.
Williams returned from giving birth to her first child to reach the 2018 Wimbledon and US Open finals, but suffered upset losses in both to leave her stuck on 23 major wins.
Andy Murray was not included when the China Open draw was made on Saturday.
Andy Murray had this week produced some of his best tennis of the year at the Shenzhen Longgang Sports Centre.
Andy Murray now has a 6-0 head-to-head record against David Goffin.
Andy Murray reached the pinnacle of the sport in 2016 and has three Grand Slam singles titles on his shelf.
Andy Murray has played just five tournaments this season and is currently ranked No. 308.
Former Wimbledon champion Andy Murray will play two tournaments in China before bringing an end to his troubled campaign.