Serena Williams of the United States returns the ball during their doubles tennis match with Ons Jabeur of Tunisia against Marie Bouzkova of Czech Republic and Sara Sorribes Tormo of Spain at the Eastbourne International tennis tournament in Eastbourne, England, June 21, 2022. (KIRSTY WIGGLESWORTH / AP)

TORONTO - The first stop on Serena Williams' farewell tour came to a quick end as she fell 6-2 6-4 to Belinda Bencic in second-round action at the Canadian Open on Wednesday a day after announcing her forthcoming retirement from tennis.

Williams arrived on the court to a standing ovation and had the full support of the capacity crowd throughout the 77-minute match but was unable to conjure up the old magic that helped her lift three titles in Canada.

The highly-anticipated match was played a day after 23-time Grand Slam champion Williams revealed in a Vogue article that she was "evolving away from tennis" and planned to retire from the sport she has dominated for over two decades

"It's been a pretty interesting 24 hours ... I'm terrible at goodbyes. But, goodbye Toronto," an emotional Williams told the crowd.

"I always had amazing times here both on and off the court. I'll be coming back just as a visitor to the city but otherwise its been remarkable."

After the match, Williams was presented with team jerseys of Toronto's NBA and NHL teams for her and her daughter, who was in attendance, as well as a bouquet of flowers that she carried off the court while wiping back tears.

Prior to the match, a tribute video was played featuring comments from tennis pioneer Billie Jean King, current players like Coco Gauff and Emma Raducanu as well as ice hockey great Wayne Gretzky and highlights of Williams' Canadian triumphs.

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The highly-anticipated match was played a day after 23-time Grand Slam champion Williams revealed in a Vogue article that she was "evolving away from tennis" and planned to retire from the sport she has dominated for over two decades. 

Olympic champion Bencic saved the lone break point she faced in the opening set and broke Williams twice to jump ahead 5-2 but the Swiss 12th seed then needed five set points to clinch the opening frame.

In the second set, Bencic got the one break she needed to go ahead 4-3 when Williams struck a double-fault and the Swiss never looked back as she sealed the match on her serve when Williams sent a return long.

"It was a lot of emotions obviously," Williams said about how it felt to take the court. "I love playing here, I've always loved playing here. I wish I could've played better but Belinda played so well today."

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Up next for Bencic will be Spanish eighth seed Garbine Muguruza, who was a 6-4 6-4 winner over Estonia's Kaia Kanepi.

Among the others reaching the last 16 of the tune-up event for the Aug 29-Sept 11 US Open were world number one Iga Swiatek, defending champion Camila Giorgi, Coco Gauff, Simona Halep, Karolina Pliskova, Jessica Pegula and Aryna Sabalenka.