Andy Murray and coach Ivan Lendl have both decided to end their partnership for a second time as the former world No.1 prepares to make his tennis comeback in Brisbane late next month.
Murray first announced the parting of ways on his official website, describing the move as "mutual".
Later Lendl, an eight-time grand slam singles champion, released a statement saying he wished Murray well.
The Scotsman has won all three of his grand slam crowns under the guidance of Lendl, winning a second Wimbledon title last year in the second instalment of their partnership. The first ran from 2012 to 2014.
An injury-hit 2017 hindered their chances of further success, though, with Murray ending his season with three months to run because of a hip problem.
"I'm thankful to Ivan for all his help and guidance over the years. We've had great success and learned a lot as a team," Murray said in a statement.
"My focus now is on getting ready for Australia with the team I have in place and getting back to competing."
That means Jamie Delgado will work even closer with the 30-year-old.
He has been a permanent fixture on Murray's coaching team since last year - with Lendl on a more part-time basis - and he will likely be the man in Murray's corner when the new season begins.
Lendl agreed the partnership had seemingly run its course.
"I wish Andy well going forward. We had a great run and a lot of fun," said Lendl, who has been widely credited as one of the main keys to Murray's top-level success.
The split, regardless of how amicable, caps a year to forget for Murray.
Having scaled so many heights in 2016, including that second Wimbledon win, Olympic gold and reaching No.1 in the world, 2017 has yielded just one title.
That came at the Dubai Tennis Championships in March, while his best slam performance was reaching the semi-finals of the French Open.
A hip problem ruined his Wimbledon defence and forced him out of the US Open, while he was unable to defend his ATP Finals crown in London.
Murray has flagged the Australian season as his return to the men's tour with the Brisbane International, starting next month (December 31-January 7) and where he is a former champion, as the likely springboard to the first major of the new year, the Australian Open.
