Khachanov/Rublev Oust Third Seeds in Moscow
"I've played with Karen so many times and we've gotten used to each other. Plus we've known each other since we were kids, so we know each other perfectly," Rublev told ATPTour.com. "With Aslan, it's different. In my opinion, I think Aslan plays doubles the best of all of us, the way he thinks, the way he returns, plays with the volleys.
"He knows more how to play more like a doubles player compared to all of us [Russians], and I think he's a great player who can play really, really good in doubles."
"I think Andrey is not a bad doubles player because everybody from us [Russians] wins matches with him," Khachanov interjected, cracking a laugh.
Khachanov and Rublev have made two ATP Masters 1000 finals together, and will try to claim their first ATP Tour trophy as a team this week.
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Second Seeds Advance In Antwerp
Second seeds Nicolas Mahut and Fabrice Martin moved into the quarter-finals of the European Open on Tuesday with a 6-3, 6-2 triumph against home favourites Ruben Bemelmans and Kimmer Coppejans.
Frenchmen Mahut and Martin are competing together for the second time this season after making the quarter-finals in Winston-Salem two months ago.