Sierra returns with her recovery unresolved, Jones faces an ambitious challenger, and Grabher must protect her leads. Curitiba’s clay opener puts discipline ahead of reputation.

Alcaraz faces Khachanov’s indoor resistance, Zverev tests the value of a break, and Dimitrov returns against Cobolli. Vienna’s opening round puts readiness before reputation.

Kubka brings a sharp indoor game, Blinkova faces a test of consistency, and Stefanini and Jimenez Kasintseva arrive with recent medical interruptions in the background.

Bublik brings home support and a demanding turnaround against Medvedev. Tsitsipas faces a different examination: stopping Basilashvili’s qualifying run before it reaches a final.

Fils’ Finals chase meets Struff’s aggressive revival in Brussels, while Cerundolo’s controlled progress faces Griekspoor’s growing confidence on a surprisingly slow centre court.

Fernandez faces Alexandrova again, Jovic tests her renewed control against Shnaider, and Kawa challenges Rybakina with the defending champion’s fitness still an open question.

Rybakina returns with fitness unresolved, Paolini faces Jovic after an uneven escape, and Eala tests whether Shnaider can turn survival into control in Ningbo’s second round.

Bublik faces home expectations, Atmane must build on a completed match, and Khachanov tests Machac’s revival. Medvedev begins his title defence with fatigue in the background.

Ostapenko brings attacking form and an arm concern to Bencic, while Shnaider faces Putintseva again. Two lucky losers make physical readiness central to Ningbo’s opening round.

Tsitsipas faces an opponent who beat him in August, Sakamoto brings momentum into Khachanov’s opener, and Atmane has fitness and composure questions to answer against Hijikata.