Question: Were both Mary Joe Fernández and Tracy Austin tennis players?
Context: Gigi Fernández and Natasha Zvereva were the defending champions, but lost 6–2, 6–1 in the final to Lindsay Davenport and Mary Joe Fernández.  It was the 1st Grand Slam doubles title and the 8th title overall for Davenport, and the 2nd Grand Slam doubles title and the 14th title overall for Fernández, in their respective careers. Lindsay Davenport and Mary Joe Fernández were scheduled to play Tracy Austin and Gigi Fernández in the final.  However, the match was canceled on 12 September due to rain and was not rescheduled. Patty Fendick and Mary Joe Fernández won their first career Grand Slam title, defeating Gigi Fernández and Jana Novotná 7–6, 6–1 in the final. The 1990 Porsche Tennis Grand Prix was a women's tennis tournament played on indoor carpet courts at the Filderstadt Tennis Centre in Filderstadt, Germany and was part of the Tier II of the 1990 WTA Tour.  It was the 13th edition of the tournament and was held from 15 October to 21 October 1990.  Second-seeded Mary Joe Fernández won the singles title. Lindsay Davenport and Mary Joe Fernández were scheduled to play Tracy Austin and Gigi Fernández in the previous year's final.  However, the match was canceled on 12 September due to rain and was not rescheduled. Nicole Arendt and Manon Bollegraf were the defending champions but lost in the semifinals to Gigi Fernández and Mary Joe Fernández. The 1997 WTA German Open was a women's tennis tournament played on outdoor clay courts at the Rot-Weiss Tennis Club in Berlin, Germany that was part of the Tier I categiry of the 1997 WTA Tour.  It was the 26th edition of the tournament and was held from 12 May through 18 May 1997.  Tenth-seeded Mary Joe Fernández won the singles title. Mary Joe Fernández Godsick (born María José Fernández; August 19, 1971) is an American former professional tennis player.  She reached a career-high ranking of world No. 4 in both singles and doubles.  Fernández was the runner-up in three Grand Slam singles tournaments and won two Grand Slam women's doubles titles and two Olympic gold medals. The 1999 Lipton Championships – Women's Doubles was the women's doubles event of the fifteenth edition of the tennis tournament played at Miami, United States.  It is the third WTA Tier I tournament of the year, and part of the US Spring tennis season.  Martina Hingis and Jana Novotná were the defending champions and won in the final 0–6, 6–4, 7–6 against Mary Joe Fernández and Monica Seles. Tracy Ann Austin Holt (born December 12, 1962) is an American former World No. 1 retired professional tennis player.  She won three Grand Slam titles, including the women's singles titles at the 1979 and 1981 US Opens, and the mixed doubles title at the Wimbledon Championships in 1980.  Additionally, she won the WTA Tour Championships in 1980 and the year-ending Toyota Championships in 1981, both in singles.  A series of injuries and a serious automobile accident cut short her career.  Since 1979, she has been the youngest US Open female singles champion in history, and she is the youngest inductee of all time at the International Tennis Hall of Fame.  Austin won singles titles on all playing surfaces: clay (both red clay and green clay), indoor carpet, grass, and hard courts.
Answer: yes