WATCH: Players aghast as power goes out mid-match in Montpellier ... more than once

Inclement weather typically doesn't impact tennis tournaments played indoors ... unless it's the Open Occitanie in Montepellier. The second-round match between No. 3 seed Flavio Cobolli and Jesper de Jong was twice interrupted Thuesday as heavy rains in the area resulted in an in-arena blackout.

As the players returned from a change of ends with the Dutchman leading 5-2 in the third set, some of the lights in the Sud de France Arena shut off.

While chair umpire Aurélie Tourte radioed off-court for assistance, the players idled about at the back of their respective baselines for several minutes before ATP supervisor Cedric Mourier arrived to furter assess the situation. But "just when you thought it couldn't get any worse," as world feed commentator Adam Fielder lamented, the rest of the arena's lights shut off, leaving players, officials and spectators completely in darkness.

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"Unless he's an electrician, I don't really know what help he's going to be," Fielder quipped as longtime French official Mourier eventually arrived on court.

The situation was eventually resolved and the players resumed play.

But 20 minutes later, with de Jong facing a break point in the fourth game of the second set, the lights shut off again.

"Not again!" Fielder exclaimed. "What a time for it to happen as well. ... I don't know if it's weather-related or not, but you can hear it thundering down outside." (French tennis website TennisActu later reported that the electrical issues appeared to be weather-related.)

Later in the second set, a power surge even briefly impacted the audio for the tournament's electronic line-calling system.

But the repeated interruptions didn't derail de Jong's bid to become the first Dutchman to reach the quarterfinals in the 15 years since the longtime ATP 250 event moved to Montpellier. The qualifier later finished off the upset over the world No. 34, 6-3, 7-6(2), for his best career win by ranking. He was joined hours later in the last eight by his compatriot, No. 5 seed Tallon Griekspoor, and the two will play for a spot in the semifinals.

Whether under the lights or in darkness, "I played pretty much my best match of the year," de Jong said.