Someone told me that they considered Marta to be "the best women's soccer player ever". I disagree, but not because I think it's impossible for her to one day make a solid claim to that title.
For me, Michelle Akers still occupies that "best ever" spot. Part of the reason why is that Akers was a gamer. She was a competitor who could raise her game when it was most needed. She was skilled, strong and tough.
Marta is a different sort of player, quick and tricky on the ball. Technically, she may be the best the women's game has ever seen.
Thing is, I've always thought that results matter, that game pressure reveals truth - and Marta has yet to prove she has the heart of the champion.
That's why these Olympics are especially important for Marta. She can fill out that blank spot on her resume and really put her team on the map. That's important, given that her home country tends to overlook women's soccer.