Wawrinka's single handed is arguably better than many double handers out there. It's combination of power and spin is unmatched. He can play the whole range of

Wawrinka's single handed is arguably better than many double handers out there. It's combination of power and spin is unmatched. He can play the whole range of shots, gets incredible accuracy and appears to be repeatable enough to exchange rallies against the best forehand all day. Which makes me wonder why no one has been able to replicate it. Either he's a freak blessed with unique mechanics to be able to perform this shot or there's not enough people trying.