Saturday's Seville semifinal pits Dusan Lajovic against Max Alcala Gurri on clay. Dusan Lajovic has won 4 in a row and 7 of the last 10 overall. Max Alcala Gurri is rolling — 3 straight wins, 7 of 10 in recent play.

The serve is where this match separates: Lajovic has been winning 67% of first-serve points to Gurri's 61.9%, and on clay that gap compounds fast. Lajovic comes in off a compressed schedule; Gurri comes in off a compressed schedule. This one is close to a coin flip, and the lean toward Lajovic is exactly that — a lean.