ESPN Films and espnW will premiere the documentary Venus Vs., directed by Ava DuVernay, as the first film in the upcoming Nine for IX series, tomorrow, July 2, at 8pm ET.

Venus Vs. highlights Venus Williams’ work that changed the course of women’s tennis. In a stunning case that drew increasing attention and debate, Williams challenged the long-held practice of paying women tennis players less money than their male counterparts at Wimbledon.

With a deep sense of obligation to the legacy of Billie Jean King, Williams lobbied British Parliament, UNESCO and Fleet Street for financial parity. The boys clubs at Roland Garros and Wimbledon finally relented in 2007 and during that same year Venus became the first women’s champion at Wimbledon to earn as much as the men’s champion, Roger Federer.

Read Nijla’s “thumbs up” LAFF review of the doc HERE.

The Nine for IX series on ESPN will air Tuesday nights at 8 pm ET as follows:

July 2: Venus Vs.

July 9: Pat XO

July 16: Let Them Wear Towels

July 23: No Limits

July 30: Swoopes

August 6: The Diplomat

August 13: Runner

August 20: The ’99ers

August 27: Branded

All Nine for IX films will be available for purchase on iTunes and Amazon the day following each TV broadcast. A collectible DVD gift set with all films will also be available on October 15, 2013.

Follow the Nine for IX series on twitter at @30for30 and @espnW. Fans can join the conversion with the hashtag #VenusVs.

A new clip from the doc has surfaced and is embedded below: