Alexander Zverev has undergone an 'incredible evolution' this year, according to Naomi Osaka's former coach Sascha Baijin.
Zverev has certainly had a fine year, reaching the Australian Open semi-final and the US Open final in 2020.
Much of his success has come since appointing David Ferrer his new coach, with his technique on his forehand noticeably improving, particularly on faster courts.
And that, according to compatriot Baijin, is merely the tip of the iceberg when in comes to what Zverev is actually capable of producing.
“[His] evolution is incredible," Baijin said of Zverev. "I’m very happy for him too. I’m a fan of his and I like the way he plays.
"I hope the US Open gave him the confidence he needed.
“He’s very athletic for his size and I think he can do a lot more – especially on hard courts that are getting faster again. That should suit his game even more.”
Away from tennis, Zverev has had a much tougher year. He received criticism after being pictured partying just hours after the coronavirus outbreak on the Adria Tour when he was supposed to be isolating.
He has also been the subject of abuse allegations from a former girlfriend, although he has denied them.
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