Cape Town - AB de Villiers and Virat Kohli are like the Roger Federer and Rafael Nadal of cricket, according to Australia's Trent Woodhill.
Woodhill, who has worked with both batsmen as part of the coaching staff of the IPL team Royal Challengers Bangalore, praised the duo for their skills.
The Australian noted that while Kohli's strength was his fitness and the extra sharpness it gave him, the South African was all about training smart.
"He's (De Villiers) mastered the art of replicating what he needs to do in a period of time in training to be able to move on," said Woodhill in an interview, as quoted by the ICC website.
"(Kohli) is the most impressive sportsman I've had the pleasure to work with - in any sport. He's in the same stratosphere as Roger Federer, Cristiano Ronaldo or Messi."
"His approach to his own cricketing career and everything involved around it is extremely professional."
Both Kohli and De Villiers stood up and delivered for their sides when the two nations met earlier this year, which the Proteas triumphed 2-1.
And as with the tennis duo, they share a strong respect and friendship, given their time playing together in the IPL.
"It's tough to pick who is the best of them," said Woodhill. "AB and Federer share a similar DNA I think, and the same with Nadal and Kohli.
"The point's never dead for Nadal, and the point's never dead for Virat. And AB, he finds a way as Federer does, in conditions where others struggle."
Bangalore are currently seventh in the IPL standings thus far and play the Dehli Daredevils on Saturday (16:30 SA time).