's spectacular tennis career appears to be coming to an end after he announced on Friday he would quit the sport after struggling to overcome a hip injury.
The former British and World No 1 said he would retire after this year's Wimbledon in an emotional press conference in Australia, though he admitted he may not make it that far.
Over the course of his career Murray has won three Grand Slams, two Olympic gold medals, one ATP Tour Finals, a Davis Cup, finished 2016 as world No 1 and collected 45 ATP tour titles.
He first emerged onto the scene in 1999 when he won Florida's Orange Bowl in his age group, one of the most prestigious junior tournaments in the world. He won it again two years later.
The following year, a teenage Murray left home and went to train at the world renowned Casal-Sanchez Academy in Barcelona for 18 months to develop his game. The coaching appeared to work as in 2004 he became the world's No 1 junior player.
Murray defeated Sergiy Stakhovsky to lift the U.S. Open junior title in New York City and later that year he received widespread acclaim, ending 2004 as the BBC's Young Sports Personality of the Year.
His rise through the ranks continued in 2005 when he became the youngest British player to compete in the Davis Cup, winning a doubles rubber against Israel. He turned professional that year.
2006 proved to be a huge moment in Murray's breakthrough in the professional ranks. He first beat Roger Federer at the Cincinnati Masters before overcoming Andy Roddick on his way to winning the SAP Open in San Jose, his first ATP Tour title.
Murray built on that success in California in 2007 by defending his crown while there was also success at the St Petersburg Open, which helped him break into the world's top 10.
He then made major progress at Grand Slam tournaments in 2008 when he made it through to the quarter-finals of Wimbledon. Later that year he beat Rafael Nadal to reach the final of the US Open before losing to Federer at Flushing Meadows.
Those results propelled him to No. 2 in the world in 2009 before more Grand Slam heartbreak occurred in 2010 and 2011, when he finished as runner-up twice at the Australian Open in Melbourne.
January 2012 proved to be a critical turning point in Murray's career. He hired eight-time Grand Slam champion Ivan Lendl as his coach and the Czech helped him to the next level.
In July 2012, Murray made it through to his first Wimbledon final and became the first British male to do so since Bunny Austin in 1938.
It proved to be a devastating occasion though as Murray squandered a one-set lead to lose to Federer on Centre Court before being reduced to tears in his post-match interview.
He earned redemption just four weeks later though when he claimed the Olympic gold medal at Wimbledon at London 2012 with a stunning straight sets win over the Swiss.
There was further joy in the autumn as Murray became the first player from Great Britain since 1977— and the first British man since 1936 — to win a Grand Slam singles title. He edged Novak Djokovic in a five-set thriller at the US Open.
Murray's extraordinary 12 months concluded in the most fitting fashion as he finally ended his Wimbledon nightmare and made history. He once again edged Djokovic on the biggest stage to claim the men's singles title at SW19. Murray was the first British male to win the tournament in 77 years.
Murray's injury concerns began to linger in September 2013 when he was forced to undergo back surgery that forced his season to finish prematurely. Upon his return, Murray crashed out of the 2014 Australian Open in the quarter-finals and dropped out of the world's top five for the first time since 2008.
The successful partnership between Lendl and Murray came to an end in March 2014 and the Scot replaced him with former women's World No 1 Amelie Mauresmo three months later.
Murray seemed to be returning to his best when he made the Australian Open final in 2015 but was once again beaten when it mattered most. He endured further Grand Slam disappointment that year and lost in the semi-finals of both the French Open and Wimbledon before being knocked out in the US Open fourth round.
While individual success was scarce in 2015, Murray helped Britain end their wait for Davis Cup glory by inspiring Leon Smith's side to victory over Belgium in the final. Murray beat David Goffin in straight sets in the decisive rubber, handing Britain their first Davis Cup victory since 1936.
Murray picked up where he left off in 2016, reaching another Australian Open final only to be beaten once again by Djokovic. He also impressed at the French Open, eliminating defending champion Stan Wawrinka to become the first British player to reach the final at Roland-Garros since 1937, but ultimately came up short against Djokovic once more.
While there was disappointment in Australia and France, Murray won his second Wimbledon title in the summer of 2016. He eased past Canada's Milos Raonic in straight sets to win his third and most recent Grand Slam title.
There was more success just around the corner as Murray beat Argentina's Juan Martin del Potro at Rio 2016 to become the first male tennis player to successfully defend his Olympic singles title.
ATP Tour wins in Vienna, Shanghai and Beijing took Murray to the verge of becoming world No 1 before reaching the final of the Paris Masters ensured the Briton dethroned Djokovic to reach the summit of the men's game.
Hip trouble has plagued Murray since he began to feel the flare-up of a long-standing issue that had previously been under control in June 2017. Walking with a noticeable limp at Wimbledon 2017, Murray battled his way into the quarter-finals but his title defence ended with a five-set loss to Sam Querrey.
In January 2018, Murray announced he had undergone hip surgery in Melbourne but just months later had suffered a setback in his recovery and was forced to take more time away from the court. In June, a lengthy 342 days since his last competitive outing, Murray finally makes it back on court in the Fever-Tree Championships against Nick Kyrgios but loses his first-round match.
Two days after Christmas and despite some time away since losing to Fernando Verdasco in Asia in September, Murray admits the pain is still prominent as he prepares to play in the Brisbane International, a warm-up tournament for the Australian Open.
In his last-16 tie against Russian star Daniil Medvedev, Murray is comfortably beaten 7-5, 6-2 as fears grow over the condition of his hip. On Thursday, Murray then left his Australian Open press conference in tears and suggests his time in Melbourne could be his last Grand Slam tournament due to the pain being too much to continue playing through.