Question: Hsieh Su-wei and Manuela Maleeva, have which mutual occupation?

Context paragraphs:
Peng Shuai: Peng Shuai (; ; born 8 January 1986) is a Chinese professional female tennis player.  She reached a career high ranking of World No. 1 in doubles by the Women's Tennis Association on 17 February 2014, making her the first Chinese professional tennis player (male or female, and in singles or doubles) to reach World No. 1.  She won a gold medal at the 2010 Asian Games, defeating Akgul Amanmuradova in the final.  At the 2013 Wimbledon Championships, Peng won her first ladies' double championship with Hsieh Su-wei of Taiwan and again won at the 2014 French Open with Hsieh.

Manuela Maleeva: Manuela Georgieva Maleeva-Fragnière (Bulgarian: Мануела Георгиева Малеева ) (born 14 February 1967) is a Bulgarian former professional tennis player.  She played on the Women's Tennis Association tour between 1982 and 1994.  Through her marriage Maleeva began representing Switzerland officially from January 1990 until her retirement in February 1994.

2009 Hansol Korea Open – Doubles: Chuang Chia-jung and Hsieh Su-wei were the defending champion, but Hsieh chose not to participate that year.  Chuang partnered with Yan Zi, but they lost in the semifinals against Chan Yung-jan and Abigail Spears. Chan Yung-jan and Abigail Spears won in the final 6–3, 6–4 against Carly Gullickson and Nicole Kriz.

2013 ITF Women's Circuit – Wenshan – Doubles: Hsieh Shu-ying and Hsieh Su-wei were the defending champions, having won the event in 2012, but Hsieh Su-wei chose not to participate.  Hsieh Shu-ying paired up with Zhu Aiwen but lost in the first round to Li Ting and Zhang Kailin.

2015 BNP Paribas Open – Women's Doubles: Hsieh Su-wei and Peng Shuai were the defending champions, but Peng withdrew from the tournament with a back injury.  Hsieh played alongside Flavia Pennetta, but lost in the first round to Klaudia Jans-Ignacik and Andreja Klepač.

2015 French Open – Women's Doubles: Hsieh Su-wei and Peng Shuai were the defending champions, but Peng chose not to participate this year.  Hsieh played alongside Flavia Pennetta, but lost in the quarterfinals to Andrea Hlaváčková and Lucie Hradecká.

2015 Qatar Total Open – Doubles: Hsieh Su-wei and Peng Shuai were the defending champions, but Peng decided not to compete this year.  Hsieh played alongside Sania Mirza, but lost in the final to Raquel Kops-Jones and Abigail Spears, 4–6, 4–6.

1986 Edgbaston Cup – Singles: Pam Shriver was the two-time defending champion and won in the final against Manuela Maleeva, 6–2, 7–6.

Hsieh Su-wei: Hsieh Su-wei (born January 4, 1986) is a professional female tennis player from Taiwan.  s of 25 2013 she was ranked No. 23 in the WTA Tour singles rankings and is the highest-ranked Taiwanese women's singles player ever.  Currently she is the top-ranked WTA player from Taiwan in both singles and doubles.

Bettina Fulco: Bettina Fulco (born 23 October 1968) is a retired Argentine professional women's tennis player.  She reached her highest ranking of No. 23 on October 10, 1988.  Fulco began playing tennis at age 10 at the University Club in her hometown of Mar Del Plata, having been inspired to start because of the increased interest in the sport in Argentina due to Guillermo Vilas' success.  As a junior, Bettina was among the best in the world, reaching the finals of the Orange Bowl 18-and-under championships in 1986, and finishing second in the rankings in 1986.  She turned professional in 1987.  Like many South American players, Bettina Fulco was considered a clay court specialist, and reached the quarterfinals of the French Open in 1988.  Bettina beat Martina Navratilova in Houston 1994 for her biggest career victory.  She also achieved victories over Conchita Martínez, Arantxa Sánchez Vicario, Hana Mandlíková, Katerina Maleeva, Manuela Maleeva, Magdalena Maleeva, Claudia Kohde-Kilsch, Lori McNeil and Nathalie Tauziat.  She retired from professional tennis in 1998.

Supporting paragraphs: Hsieh Su-wei Manuela Maleeva
Answer: tennis player