Karolina Muchova vs Camila Osorio — R64 — Miami Open

Muchova dropped the opener 6-4 and survived a match point in the decider, but the second serve carried her back: she won 53% of those points to Osorio's 37%, a 16-point gap that decided a tight afternoon. The Colombian's 13 double faults to Muchova's four kept handing the break back — Set 3 alone saw five breaks of serve before Muchova held in game 11 to close it 7-5. She booked a third-round meeting with Katie Boulter.