She’s got this ace up her sleeve.

“I love what I do, I’ve always loved what I do,” Williams says, when asked her secret to tennis success, in a new video released Thursday by Chase. “I think it goes back to my first year on tour where I just never picked up my checks. I did it because I wanted to be the best, I loved what I did and I never, never wanted to do anything else.”

Another thing that helps her kick ass on the tennis court: “I really hate to lose,” she says in the video, a part of personal finance series “Kneading Dough” that Chase is doing in partnership with LeBron James and Maverick Carter’s media company, UNINTERRUPTED. “That’s why I’m Serena.”

Watch the interview here.

She’s far from the only celeb to say a love of what she does drives her success. Warren Buffett famously said that: “The secret to reliable, sustainable success does not come from forcing yourself to do something you don’t love. In fact, true achievement comes from the opposite of that–doing something you do love.” And he’s repeatedly said, “I get to work in a job I love.”

In the video, Williams also shares her thoughts on what she looks for when picking businesses to invest in, including who the other investors are — their portfolios and their investing history — and the quality of the product. “I never do anything if I don’t really believe in the product,” Williams says. Though Williams now has a team that just focuses on her investments, she’s still very involved — admitting she might even be “too hands on” — and jokes she’s always thinking about those great investments that got away. “As a competitor, I just keep thinking about the ones I missed on.”

She also believes that motherhood will likely broaden her business acumen. “Having a child is opening new doors,” she says — noting that she’ll likely look at investing in new companies now, like baby food, that she might not have considered before.

Still, her priority, going forward, she implies is her new baby: “Most of all, I just want to give the baby lots of love.”