Stan Wawrinka won his Basel match against Miomir Kecmanovic with a 6-1, 7-6 score.
What happened?
He secured this win at 40 years old, making him the second-oldest player to win an ATP 500 event.
Stan Wawrinka dominated the first set, finishing it in 26 minutes.
He hit 33 winners and kept his unforced errors to 25, a stat line that would make a player in their prime nod with approval.
Why it matters for Stan Wawrinka
This victory was significant for Stan Wawrinka as it kept the Swiss hopes alive in their home tournament.
The win also etched Stan Wawrinka's name into a new corner of the record books, passing Roger Federer as the second-oldest player to secure a victory at an ATP 500 event.
What comes next?
Stan Wawrinka's win may not mean a miraculous late-career surge back to the top, but it does mean he still has fire in his belly.
He is out there to compete, to fight, and on days like this, he can still play at a high level.
The only player now ahead of Stan Wawrinka in the longevity department is Feliciano Lopez.
Stan Wawrinka's victory was just his fourth on the ATP Tour this year, highlighting the struggles he's faced with form and fitness.
But this win was a crucial one, and it will be interesting to see what comes next for Stan Wawrinka.