Friday's US Open round of 32 pits Alex Michelsen against Daniel Merida Aguilar on hard. Alex Michelsen has won 7 of the last 10. Daniel Merida Aguilar has won 8 of the last 10.

Hold strength tells the story — 69.9% versus 64.6% on first-serve points in Michelsen's favor. A tiebreak or two would surprise nobody, with Michelsen fractionally more likely to land the big points.