Sun X / Zhang R vs Dorofeeva-Rybas F / Pushkareva A

Sun X / Zhang R enter as slight favorites with perfect clay form (2-0 on red clay at RG) and momentum from a tight R16 win requiring a tiebreak. Dorofeeva-Rybas / Pushkareva also undefeated on clay here (2-0) but show lower 3-set rate (17% vs 50%), suggesting less competitive matches. Both teams played yesterday; fatigue is neutral. No H2H data. QF context favors the higher-momentum team. Sun's 50% tiebreak rate and recent competitive win edge them slightly despite even surface records.

Slight edge from recent competitive form and tiebreak experience, but Dorofeeva-Rybas / Pushkareva's undefeated clay record keeps this close.

Sun's 50% 3-set rate and both teams' competitive clay records suggest extended rallies; expect 2-1 outcome with tight set scores.

Slight favorite status justified by momentum and tiebreak poise, but margin narrow given opponent's perfect clay form.