Gisela Dulko, Tennis (Argentina)

Dulko, 27, is a former women's doubles world No. 1. Still top-ranked, she's won 17 doubles titles, including the 2011 Australian Open.

Training Schedule: A normal training day is usually three to four hours of tennis practice on the court, plus two hours of cross training in the gym with weights, or running on a treadmill. And I get a sports massage once a day.

Pre-and Post-Match Meals: Before I compete, I eat something light like fruit, and I hydrate a lot. After a game, eating carbs is part of my routine. My husband (soccer player Fernando Gago) plays for Rome’s team, and Italian foods like pizza and pasta are my favorites!

Smart Snack: Bread with Nutella—chocolate is healthy for your heart.

Guilty Pleasure: Ice cream is my weakness.

On-the-Court Beauty: I don't wear any makeup when I play matches, only sunscreen—Avène SPF 30 for face and body. And I usually tie my hair back in a braid to play tennis.

Perfume Pick-Me-Up: Hypnotic Poison by Christian Dior. I love the smell of vanilla in it.

A normal training day: Three to four hours on the court, plus two hours in the gym.