Swiss teen Belinda Bencic has won this year's Rogers Cup tournament after Romanian Simona Halep withdrew from the final due to injury.
Halep retired with a left leg injury and heat exhaustion, and pulled out in the third set after dropping the first 3 games in the last set.
This is the second WTA Tour trophy for Bencic, who upset world number one Serena Williams in a three-set marathon semi-final.
"To close out a match against any players is very tough, to close out a match against Serena Williams is another story. I've seen her on TV so many times turn around matches. I knew she was not going to hand it to me. I got really nervous, I think that's nervous, everyone would. I'm really proud that at 5-4 I somehow closed it out."
In Western & Southern Open in Cincinnati, American Lauren Davis has advanced to the next round, beating her compatriot Nicole Gibbs in straight sets 7-6, 6-4.
Other competitors including Australian Casey Dellacqua, Lucie Hradecka of the Czech Republic and Mona Barthel from Germany are also through.
