A tearful Andy Murray has been forced to call time on his career after accepting the hip troubles which have plagued him recently are not improving.
Here, Press Association Sport lays out the timeline of Murray's injury troubles.
June 9, 2017 – Murray puts shaky form going into the French Open behind him to reach the semi-finals before losing to Stan Wawrinka but begins to feel the flare-up of a long-standing hip issue that had previously been under control.
June 27, 2017 – Murray is forced to publicly acknowledge the problem when he pulls out of a scheduled exhibition match at the Hurlingham Club, a move cited as precautionary.
July 2, 2017 – After pulling out of a second Hurlingham match, Murray calms fears he may be forced to miss Wimbledon by confirming on the eve of the tournament that he will play.
July 12, 2017 – Walking with a noticeable limp, Murray battles his way into the quarter-finals but his title defence ends with a five-set loss to Sam Querrey. Afterwards, Murray insists he does not expect to be away from the tour for too long.
August 26, 2017 – After pulling out of two Masters events and losing his world number one ranking to Rafael Nadal, Murray travels to New York intending to return at the US Open. But two days before the tournament he announces at an emotional press conference that he is pulling out.
September 6, 2017 – Murray heads home for further consultations with a number of hip specialists then announces he is likely to miss the rest of the year but is hoping to avoid surgery.
January 2, 2018 – Murray schedules the Brisbane International for his second attempt at a comeback only to pull out on the eve of his first match. In a heartfelt post on Instagram accompanied by a childhood photo, Murray says: "I choose this pic as the little kid inside me just wants to play tennis and compete. I genuinely miss it so much and I would give anything to be back out there."
January 8, 2018 – Murray announces he has undergone hip surgery in Melbourne. In an upbeat assessment, he says surgeon John O'Donnell is very happy and that he is targeting a return for the grass-court season.
May 8, 2018 – After Murray does not enter a Challenger tournament in Glasgow that had been earmarked for his return, it emerges he has suffered a setback in his recovery and has been forced to take more time away from the court.
June 16, 2018 – After two weeks back on court, Murray announces just before the draw that he will make his comeback at the Fever-Tree Championships at Queen's Club.
June 19, 2018 – A lengthy 342 days since his last competitive outing, Murray finally makes it back on court in the Fever-Tree Championships against Nick Kyrgios. He puts up a good fight but eventually loses his first-round match 2-6 7-6 (7/4) 7-5.
July 1, 2018 – Murray wins his first match back against Stan Wawrinka at Eastbourne but then pulls out on the eve of Wimbledon, saying it is too soon to play best-of-five set matches.
August 30, 2018 – Murray returns to the tour in Washington and makes his grand slam comeback at the US Open, beating James Duckworth in round one before losing a close contest to Fernando Verdasco.
September 28 – Murray plays one more event in China before bringing his season to an early close with the aim of being fully fit for 2019.
January 2, 2019 – Murray makes a third trip to Philadelphia to work with reconditioning expert Bill Knowles, who also travels to the Scot's pre-season camp in Miami. But a loss to Daniil Medvedev at his first tournament of the new season in Brisbane shows the hip remains a hindrance.
January 10 – Speaking ahead of the Australian Open, Murray says he has been in pain for "about 20 months" and that he will retire after Wimbledon.