Daniel Merida Aguilar and Learner Tien meet in the quarterfinal at Montreal on Tuesday. Learner Tien is rolling — 3 straight wins, 6 of 10 in recent play. Daniel Merida Aguilar brings a 4-match winning streak into this one, 9-1 across the last ten.
The serve is where this match separates: Tien has been winning 68% of first-serve points to Aguilar's 63.9%, and on hard that gap compounds fast. Tien should have enough here, though Aguilar has the tools to make the scoreboard uncomfortable.