Serena (back) retires early in Rogers Cup final

Canada's Bianca Andreescu celebrates her victory over Karolina Pliskova at the Rogers Cup on Friday

Surging teenager Bianca Andreescu became the first Canadian to win the Rogers Cup in 50 years, clinching the title after an ailing Serena Williams retired while trailing 3-1. Andreescu has won 10 of her last 11 matches on hard court.

Andreescu walked over to console her, and microphones caught Williams telling her that she had back pain after experiencing spasms the night before. Andreescu then rolled to a 5-2 lead before Kenin finally took a game point back. Her most recent loss not related to a match retirement was at the hands of Kenin, in the semifinal in Acapulco, Mexico, back in February.

Andreescu had been on the court more than any other player at this year's Rogers Cup at 10 hours 54 minutes heading into Sunday's final. "Let's wait and see two or three years how well as she goes".

Now ranked World No.27, just off of her career-high of No.22, Andreescu will be rewarded for her success with a Top 20 debut in the WTA Rankings on Monday.

"I got really low on this one ball (Pliskova) hit", said Andreescu, who said the trainer wanted to tape up her legs in a more private setting.

The American was a break down in the first set when she withdrew.

Despite the fact it was Andreescu's first match victory to not require three sets this week, it didn't come easy, or anywhere close to that.

Serena later explained to the Rogers Cup crowd that she simply couldn't tough it out that day, noting that she had tried.

As for Andreescu, her rise has been meteoric and much deserved, capturing wins against top-ranked players as her relentless and extremely tactical approach has caused fits from day one - which is nothing new for the five-time junior title victor.

All eyes are on Bianca Andreescu in her hometown of Mississauga. "It's just so incredible that I'm in the final of the Rogers Cup".

"What I've been through the past two months has not been easy", said Andreescu when addressing fans.

Andreescu doubled over in frustration when her perfectly lined-up forehand smash went long, returning the serve to Kenin and making the tiebreak 5-4.

"I try to channel that pressure into something good", said Andreescu.

Svitolina beat Caroline Wozniacki in the 2017 Rogers Cup final, the last time the women's half of the tournament was in Toronto.

But the six-times US Open champion, still without a title since returning from maternity leave in 2018, now faces her latest setback with the year's final grand slam just two weeks away. She won in 2001, 2011 and 2013 - all in Toronto - and has a tournament-record 34 victories in 38 matches.