Tuesday's Hertogenbosch round of 32 pits Adrian Mannarino against Gabriel Diallo on grass. Gabriel Diallo has dropped 2 straight and sits at 4-6 over the last ten. Adrian Mannarino limps in on a 7-match losing skid, just 1 wins in 10.

The two have never played — a first meeting always adds a layer of uncertainty the numbers can't fully capture.

On paper it's close: comparable ratings, comparable serve numbers, small margins everywhere. Diallo should have enough here, though Mannarino has the tools to make the scoreboard uncomfortable.