Serena Williams won't retire soon. Monday night at the US Open, the 23-time major winner beat Danka Kovinic 6-3, 6-3.

Williams told the fans, "I just have to do my best." "I'm very comfortable on this court.

"When I'm on the court, I want to do my best. That's it."

Williams, 40, announced her decision to "evolve" from tennis in Vogue earlier this month.

She received standing ovations at the Canadian Open and Western & Southern Open.

It was Williams' 102nd victory at Arthur Ashe Stadium since 1997 and 366th Grand Slam win.

Kovinic said it was "maybe once in a lifetime" to play Serena, especially at Arthur Ashe.

According to TickPick, Monday's night session was the most costly US Open women's final ever.

TicketIQ reports that the average secondary market ticket price on Monday was $987.

A US Open record of 29,402 spectators attended the night session on the grounds.

image credit: Michelle V. Agins 

Even her practise session before the match brought thousands of fans crammed behind a mesh fence.

Despite losing three of her four matches since returning to Wimbledon after a year, Williams isn't ready to retire.