Stefanos Tsitsipas and Valentin Vacherot meet in the round of 16 at Tokyo on Friday. Stefanos Tsitsipas is 7-3 across recent matches. Valentin Vacherot comes in at 5 wins from the last ten.

On paper it's close: comparable ratings, comparable serve numbers, small margins everywhere. Tsitsipas comes in off a compressed schedule. This one is close to a coin flip, and the lean toward Tsitsipas is exactly that — a lean.