Alexander Zverev is seeking a coach to boost his confidence after a poor performance on the ATP Tour.
He is currently ranked World No.3, but has had a rough patch, crashing out in early stages of many tournaments.
Daniil Medvedev trained with Toni Nadal for ten days in July before the North American hard-court swing.
Toni Nadal, uncle of Rafael Nadal, may join Alexander Zverev's coaching setup.
Author's summary: Zverev seeks new coach to boost confidence.