Khachanov Karen vs Zverev Alexander prediction

Both players have similar type of play in my sight, rely on powerful stroke with long rallies to win their serves, and by opponent's unforced errors. They met once in St. Petersburg 2016 when Zverev won by 7-6 6-4. Khachanov won comfortably over Pouille previously after interrupted yesterday, so he has much time to recover. While Zverev always have 5 sets game on 2 previous matches with Dzumhur & Lajovic, so physic (exhaust factor) need to considered here. However I fancy another long game here, and another 5 sets very likely to come