A day after a nationwide power outage caused fourth-round action at the Mutua Madrid Open to be suspended, Iga Swiatek got normal service back on track to open Tuesday’s rescheduled play — but only after surviving a serious scare.

The No. 2 seed continued her title defense with a 6-0, 6-7(3), 6-4 defeat of No. 13 seed Diana Shnaider in 2 hours and 34 minutes. After enjoying a 22-minute first-set whitewash, Swiatek was forced to battle hard, saving 11 out of 13 break points over the course of the contest.

Madrid: Draws | Scores | Order of play

Swiatek has yet to lose before the quarterfinals in seven tournaments this year — but she has also not gone past the semifinals since Roland Garros last year. In the last eight, she will face either Australian Open champion and No. 5 seed Madison Keys — in what would be their first meeting since Swiatek fell from match point up in the Australian Open semifinals — or No. 19 seed Donna Vekic.

More to come…