Two-time French Open finalist Alex Corretja will coach Andy Murray during the clay-court season.
The 33-year-old Spaniard, a former world number two, will work with Murray at events in Valencia, Monte Carlo, Rome, Hamburg and the French Open.
Corretja will work alongside Miles Maclagan and physical trainer Matt Little for a nine-week period.
"It is great for me to be able to work with a clay-court specialist like Alex," Murray told his website.
"He had a fantastic career and I am looking forward to learning from his experiences."
Corretja said: "I have watched Andy play several times over the last couple of years and in particular his close match against Nadal in Madrid in October.
"(I) saw that he has tremendous potential to play well on all surfaces and I am flattered to have been asked to be part of his team during the clay court season."
Murray has won two titles in 2008 but also suffered some disappointing results, including the defeat by Mario Ancic in Miami last week, when he wasted two match points.
The 20-year-old Scot missed most of the clay-court season last year after suffering a serious wrist injury in Hamburg.
I'd still prefer one dominant (and qualified) coach all throught the year. I don't like all this constant chopping and changing, but it could work out to be a good move.
I like the new coaching set up but unfortunately it has yet to convince Andy of the wisdom of taking the initiative in points, rather than his current tendency to be alarmingly passive. Even on clay, Andy could be a very fine player so long as he dominates the points, using his heavy groundstrokes, coming to the net to finish points and perhaps some serve and volley every so often.
Whether Corretja is the man to persuade Murray, I have no idea.