Serena’s farewell party rolls on

Williams eliminated No 2 seed Anett Kontaveit 7-6 (4) 2-6 6-2 in the US Open’s second round to ensure that she will play at least one more singles match at what she’s hinted will be the last tournament of her illustrious career.

‘‘There’s still a little left in me,’’ Williams said with a smile during her on-court interview.

‘‘This is what I do best,’’ she added. ‘‘I love a challenge and I’m rising to the challenge.’’

Oh, is she ever. After beating 80th-ranked Danka Kovinic in straight sets on Tuesday, then collecting her 23rd victory in her past 25 matches against someone ranked No 1 or No 2 against Kontaveit yesterday, the six-time champion will play Australian Ajla Tomljanovic for a place in the fourth round.

Asked how she’s doing it so far, Williams replied with a hearty laugh: ‘‘Well, I’m a pretty good player.’’

She hit serves at up to 192kmh, stayed with Kontaveit during lengthy exchanges of big swings from the baselines and conjured up some of her trademark brilliance when it was needed most.

After pulling out a tight first set, then faltering a bit in the second, Williams headed to the locker room for a bit of a break before the third.

Something had to give, someone had to blink.

When they resumed, it was Williams who lifted her level and emerged as the better player.

Just as she’s done so many times, on so many stages, with so much at stake.

‘‘I’m just Serena. After I lost the second set, I thought, ‘Oh, my goodness, I better give my best effort because this could be it’,’’ Williams said, surely echoing the thoughts of every one of the people paying any attention.

‘‘I’m super competitive. Honestly, I’m just looking at it as a bonus. I don’t have anything to prove,’’ she said, which certainly is true.

‘‘I never get to play like this – since ’98, really. Literally, I’ve had an ‘X’ on my back since ’99,’’ the year she claimed her first grand slam title at the US Open at age 17.

Third-seeded Maria Sakkari was ousted 3-6 7-5 7-5 by Wang Xiyu, of China, in the second round.

Coming off her run to the Wimbledon finals, No 5 Ons Jabeur matched her best US Open result with a 7-5 6-2 victory over Elizabeth Mandlik, the daughter of 1985 champion Hana Mandlikova.

Among the players to advance were Andy Murray, Coco Gauff, Madison Keys and Nick Kyrgios.