Monday's Monterrey round of 32 pits Ann Li against Camila Osorio on hard. Camila Osorio limps in on a 2-match losing skid, just 6 wins in 10. Ann Li comes in at 4 wins from the last ten.

On paper it's close: comparable ratings, comparable serve numbers, small margins everywhere. Little separates them; Osorio gets the nod on the finest of margins.