A spot in the next round is at stake on Wednesday, when Juan Pablo Varillas goes up against Murkel Alejandro Dellien Velasco in the Buenos Aires 3 round of 16. Juan Pablo Varillas is rolling — 3 straight wins, 8 of 10 in recent play. Murkel Alejandro Dellien Velasco is 3-7 across recent matches.

The serve is where this match separates: Varillas has been winning 68.7% of first-serve points to Velasco's 64%, and on clay that gap compounds fast. Varillas comes in off a compressed schedule; Velasco comes in off a compressed schedule. Anything other than a Varillas win would rank among the bigger surprises of the week.