Maria Sharapova's former coach Thomas Hogstedt is one of the high-profile names interested in becoming British number one Laura Robson's new mentor.
The Russian completed a career Grand Slam under the Swede's guidance, adding crown to her US Open, Wimbledon and Australian titles.
Sharapova, 26, also regained her world number one status with Hogstedt before they split after this year's Wimbledon.
Robson, 19, recently ended a four-month partnership with Miles Maclagan.
Hogstedt has taken an interest in Robson's career for a while, and is said to have a good relationship with her influential mother Kathy.
Nigel Sears - the former head coach of women's tennis at the LTA - is another attracted by the challenge.