Question: Are both Robin White and Maria Sharapova professional tennis players?

full_context: Document 1: Andy Roddick: Andrew Stephen Roddick (born August 30, 1982) is an American former professional tennis player from the US.
Document 2: Althea Gibson: Althea Gibson (August 25, 1927 – September 28, 2003) was an American tennis player and professional golfer, and the first black athlete to cross the color line of international tennis. In 1956, she became the first person of color to win a Grand Slam title (the French Open). The following year she won both Wimbledon and the U.S. Nationals (precursor of the U.S. Open), then won both again in 1958, and was voted Female Athlete of the Year by the Associated Press in both years. In all, she won 11 Grand Slam tournaments, including six doubles titles, and was inducted into the International Tennis Hall of Fame and the International Women's Sports Hall of Fame. "She is one of the greatest players who ever lived," said Robert Ryland, a tennis contemporary and former coach of Venus and Serena Williams. "Martina couldn't touch her. I think she'd beat the Williams sisters." In the early 1960s she also became the first black player to compete on the women's professional golf tour.
Document 3: Arthur Ashe: Arthur Robert Ashe Jr. (July 10, 1943 – February 6, 1993) was an American professional tennis player. He won three Grand Slam titles.
Document 4: Vera Zvonareva: Vera Igorevna Zvonareva (Russian: Ве́ра И́горевна Звонарёва ; ] ; born 7 September 1984) is a Russian professional tennis player. She was introduced to tennis at the age of six and turned professional in 2000. Her career high is world No. 2 by the WTA. Zvonareva has won twelve WTA Tour singles titles and reached the finals of the 2008 WTA Tour Championships, 2010 Wimbledon Championships, and 2010 US Open. She also was a bronze medalist at the 2008 Beijing Olympics. In doubles, she has won four Grand Slam titles. Two of the titles came in women's doubles, the first one at the 2006 US Open, partnering Nathalie Dechy, and the other at the 2012 Australian Open, partnering Svetlana Kuznetsova. Her other two came in mixed doubles, the first at the 2004 US Open, partnering Bob Bryan, and her second at the 2006 Wimbledon Championships, partnering Andy Ram.
Document 5: Anastasia Myskina: Anastasiya Andreyevna Myskina (Russian: Анастасия Андреевна Мыскина ; ] ; born 8 July 1981) is a Russian former tennis player. She won the 2004 French Open singles title, becoming the first Russian female tennis player to win a Grand Slam singles title. Subsequent to this victory, she rose to No. 3 in the WTA rankings, becoming the first Russian female tennis player to reach the top 3 in the history of the rankings. In September 2004, she reached a career-high ranking of No. 2. She has not officially retired, but has been inactive on the WTA Tour since May 2007.
Document 6: Chanda Rubin: Chanda Rubin (born February 18, 1976) is an American tennis player. Winning seven WTA Tour singles titles, she reached her highest ranking at World No. 6 on April 8, 1996, after reaching semifinals at the 1996 Australian Open. Rubin is also former World No. 9 in doubles, winning the Australian Open in 1996 partnering with Arantxa Sánchez Vicario.
Document 7: Martina Navratilova: Martina Navratilova (Czech: "Martina Navrátilová" ] ; born Martina Šubertová ] ; October 18, 1956) is a former Czechoslovak and later American tennis player and coach. In 2005, "Tennis" magazine selected her as the greatest female tennis player for the years 1965 through 2005 and she is considered one of the best, if not the best, female tennis players of all time.
Document 8: Maria Kirilenko: Maria Yuryevna Kirilenko-Stepanova (Russian: Мари́я Ю́рьевна Кириле́нко ; ] ; born 25 January 1987) is a Russian tennis player. Kirilenko won the 2002 U.S. Open Girls' Singles and won her first WTA Tour title in 2005, defeating Anna-Lena Grönefeld in the China Open. She has reached three Grand Slam singles quarterfinals, at the 2010 Australian Open the 2012 Wimbledon Championships and the 2013 French Open. In doubles, she has reached two Grand Slam doubles finals, at the 2011 Australian Open and the 2012 French Open, won the 2012 WTA Tour Championships and was a bronze medalist at the 2012 London Olympics. In June 2013, Kirilenko reached her career high ranking of World No. 10.
Document 9: Serena Williams: Serena Jameka Williams (born September 26, 1981) is an American professional tennis player. The Women's Tennis Association (WTA) has ranked her world No. 1 in singles on eight occasions, from 2002 to 2017. She became the world No. 1 for the first time on July 8, 2002. On the sixth occasion, she held the ranking for 186 consecutive weeks, tying the record set by Steffi Graf for the most consecutive weeks as world No. 1 by a female tennis player. In total, she has been world No. 1 for 319 weeks, which ranks her third in the Open Era among female tennis players. Some commentators, players and sports writers regard her as the greatest female tennis player of all time.
Document 10: 2014 Maria Sharapova tennis season: The 2014 Maria Sharapova tennis season officially began on 30 December 2013 with the start of the 2014 WTA Tour. Sharapova began the season, having only played one match since the previous June due to a shoulder injury, at the Brisbane International. After failing to defend her points during the winter and spring hard court season, Sharapova almost dropped out of the Top 10. She rebounded by dominating the clay court season which saw her win Stuttgart, Madrid and the French Open. Her only loss on clay came to a resurgent Ana Ivanovic. She then won her first hard court title since the 2013 BNP Paribas Open at the China Open. Her season ended on 24 October 2014 following her elimination from the round robin stage at the 2014 WTA Finals in Singapore. She ended the year raned No. 2 behind Serena Williams.
Document 11: Robin White (tennis): Robin White (born December 10, 1963) is a former professional tennis player from the United States.
Document 12: Maria Sharapova: Maria Yuryevna Sharapova (Russian: Мари́я Ю́рьевна Шара́пова ; ] ; born April 19, 1987) is a Russian professional tennis player. A United States resident since 1994, Sharapova has competed on the WTA tour since 2001. She has been ranked world No. 1 in singles by the WTA on five separate occasions, for a total of 21 weeks. She is one of ten women, and the only Russian, to hold the career Grand Slam. She is also an Olympic medalist, having earned silver for Russia in women's singles at the 2012 Summer Olympics in London.
Document 13: Maria Sharapova career statistics: This is a list of the main career statistics of professional Russian tennis player, Maria Sharapova. To date, Sharapova has won thirty five WTA singles titles including five Grand Slams, one year-ending championship, six WTA Tier I singles titles, three WTA Premier Mandatory singles titles and five WTA Premier 5 singles titles. She was also the silver medallist in singles at the 2012 London Olympics.
Document 14: 1990 US Open – Mixed Doubles: Robin White and Shelby Cannon were the defending champions but lost in the second round to Zina Garrison and Rick Leach.
Document 15: Roscoe Tanner: Roscoe Tanner (born October 15, 1951) is a retired American professional tennis player, who turned pro in 1972 and reached a career-high world singles ranking of World No. 4 on July 30, 1979.
ground_truth: yes