Alexander Zverev is working with former French Open finalist David Ferrer on a trial basis.
Former world No. 3 Ferrer began training Zverev on Monday as part of a 15-day trial.
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The seventh-ranked Zverev parted company with Hall of Famer Ivan Lendl last year and has been coached by his father, a former ATP pro, in recent months.
Prior to working with Lendl, Zverev was briefly coached by another former world No. 1 Juan Carlos Ferrero.
Ferrero and Zverev split after the 2018 Australian Open with the former French Open champion critical of some of Zverev's work habits.
“Let’s say it was a way of to be out of the court [that caused the split]. I think I had different ideas what is the way to be a professional out of the court like eat, have rest, how to deal with rest of people of the team," Ferrero told the Double Bagel podcast. "We had differences over there and at the end, we thought it was the best not to continue.
“He needs to first open his ears, and to listen to people who have more experience than him in what he needs. But obviously, he will grow up and be 24 or 25 and I think he will think these things by himself.”
Photo credit: Mutua Madrid Open Facebook