Serena Williams retires injured in Toronto, Andreescu wins trophy

Bianca Andreescu has won the WTA Rogers Cup in Toronto after 23 Grand Slam winner Serena Williams retired injured with back spasms.

The local girl Andreescu was leading 3-1 in the first set when Serena decided to pull out of the match.

And the 19 year-old girl, with WTA ranking of 22, could be seen comforting Serena, about twice her age.

She now becomes the first Canadian since 1969 to win the Rogers Cup championship.