By Nick Georgandis

It's hard not to think of Martina Navratilova and Chris Evert when watching Wimbledon -- after all the former won nine singles and 11 doubles titles there, the latter three singles and one doubles crown.

So, it makes since to revisit their marvelous ESPN 30 for 30 documentary "Unmatched" -- a candid look back at the magnificient rivalry between the two stalwarts of the 1970s and 1980s told almost exclusively by Evert and Navratilova as they spend time at Evert's Florida home and on a scenic drive through the Florida Keys.

Produced by twin sisters Lisa Lax and Nancy Stern Winters, a pair with 16 Emmy wins between them, "Unmatched" beautifully contrasts the personalities of Evert, who often leads the conversation to get her close friend to open up, and Navratilova, who talks with brutal honesty about being hated by the public for her dominance, being openly gay and her childhood in Czechoslovakia.

The honest goes both ways, with Evert remarking on her first match against the European wunderkind "I don't even remember if I won the tournament. My highlight was beating you."

As only true friends can do, the pair talk openly on their weaknesses- - Navratilova's weight gain upon reaching the United States, along with her lack of emotional toughness, which caused her to cry relentlessly on court after losses.

For Evert, there is the admission of jealousy of Navratilova's success, particularly in their head-to-head play. The pair won the 1976 doubles crown at Wimbledon, but Evert made up a "middle finger" injury shortly thereafer so she wouldn't have to keep practicing with Navratilova, fearful that the latter was learning too much of her game.

In all, the pair played 80 times, with Navratilova holding a slight 43-37 lead. They faced off in 60 finals, 14 of those Grand Slams. Navratilova had the clear 10-4 advantage on the biggest stage, except for at the French Open, where Evert won three of four clashes.
Perhaps the most touching part of the documentary comes when Navratilova speaks of her sexuality, revealing that she actually went on a double date in Los Angeles with Evert and Dean Martin Jr.  before realizing she was a homosexual years later.

The homosexuality was in sharp contrast to Evert's "American girl next door" public persona, but the US star always defended Navratilova's decisions and bravery, even while showing clear frustration for the fact that she could beat every other tennis player in the world save the one she was being asked about.

Watch: See video clips from "Unmatched"