Teen tennis phenom Bianca Andreescu's future earnings potential skyrocketed after her surprise win at the U.S. Open.

She won US$3.85 million for beating Serena Williams in the women's final Saturday, but it's likely that paycheque is only the beginning of million-dollar payouts from future sponsorship deals.

Cary Kaplan, president of Cosmos Sports & Entertainment, says the tournament's big earnings changes Andreescu's financial situation and gives her the ability to pick and choose from what is sure to be an onslaught of endorsement offers.

He says the Mississauga, Ont., teen embodies the Canadian identity and will likely consider what brands best represent her image, adding Tim Hortons and Canadian Tire spring to mind as natural fits.

She has a sponsorship deal with Copper Branch, a plant-based eatery chain with more than 50 locations mostly across Ontario and Quebec, that ends early in 2020.

Marketing director Andrew Infantino says the company signed her at the start of 2019 for about C$50,000 and hopes to extend the contract or sign a new one with her.