Emma Raducanu says it was a "tough" decision to split with coach Torben Beltz after only five months, but is "very confident" in her training.
Raducanu, 19, is working with the LTA's head of women's coaching Iain Bates in Madrid this week.
"Torben is a great guy. I really enjoyed my time with him on and off the court," said the world number 11.
"He is one of the nicest people I've met so obviously it was a tough one to split with someone like that.
"But I feel like right now I'm very comfortable with my current training.