This happened after the Norwegian Kasper Ruud with a score of 6:3 took a set from the American Taylor Fritz in the Group match of the Greens. If Ruud had lost the match without taking a set, Nadal would have had a theoretical chance of qualifying for the playoffs despite two losses.
Auger-Aliassime defeats Nadal in ATP final
Previously, Nadal suffered two consecutive defeats. He first lost to American Taylor Fritz with a score of 6:7 (3:7), 1:6, then to Canadian Felix Auger-Aliassime (3:6, 4:6).
Source: Sport

I am Sandra Jackson, a journalist and content creator with extensive experience in the news industry. I have been working in the news media for over five years. During this time, I have worked as an author and editor at various outlets producing high-quality content that attracts readers from different demographics.