Rennae Stubbs (born 26 March 1971) is an Australian retired tennis player.
 She was an Australian Institute of Sport scholarship holder.
 She has won four Grand Slam doubles titles and two Grand Slam mixed doubles titles.
 She was ranked world No.1 in doubles for three weeks in 2000.
 She represented Australia at four successive Summer Olympic Games: Atlanta 1996, Sydney 2000, Athens 2004, and Beijing 2008.
Two time reigning champion Chris Evert did not defend her title.
 She would stay home and play WTT, and did not return to Paris until 1979.
 Sue Barker defeated Renáta Tomanová 6–2, 0–6, 6–2 in the final to win the Women's Singles tennis title at the 1976 French Open.
Paul Vojtischek (born Pavel Vojtíšek, 13 June 1963) is a Czechoslovak-born West German retired professional tennis player.
 Vojtisek, who got West German citizenship in his early 20s, is married to two-time Grand Slam finalist Renáta Tomanová.
Betsy Nagelsen and Renáta Tomanová were the defending champions.
Olga Zaitseva (born 12 March 1962) is a former competitor for the Soviet Union at the 1979, 1980, 1981 and 1983 editions of the Federation Cup.
 Despite posting doubles victories over top professionals such as Betty Stöve, Hana Mandlíková and Renáta Tomanová, Zaitseva did not compete at any point on the women's professional tennis circuit or at any of the Grand Slams and thus never attained a world ranking.
Renáta Tomanová (born 9 December 1954) is a former professional tennis player from Czechoslovakia.
Lisa Raymond and Rennae Stubbs were the defending champions, but Stubbs decided not to participate.
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Elena Bovina and Rennae Stubbs were the defending champions, but had different outcomes.
 While Bovina did not compete this year, Stubbs pertnered with Cara Black and successfully defended her title, defeating Elena Likhovtseva and Magdalena Maleeva 6–0, 6–1 in the final.
 It was the 2nd title in the year for the pair, and the 14th title for Black and 44th title for Stubbs, in their respective careers.
The Mixed Doubles tournament at the 1980 French Open was held from 26 May to 8 June 1980 on the outdoor clay courts at the Stade Roland Garros in Paris, France.
 Billy Martin and Anne Smith won the title, defeating Stanislav Birner and Renáta Tomanová in the final.
Evonne Goolagong defeated Renáta Tomanová 6–2, 6–2 in the final to win the Women's Singles title at the 1976 Australian Open.
 This was Goolagong's 6th straight final at the Australian Open.

Question: Rennae Stubbs and Renáta Tomanová were both what?
Answer: tennis player