Question: Are Jean-Julien Rojer and Květa Peschke both professional tennis players?

full_context: Document 1: Jamie Murray career statistics: Jamie Murray is a professional tennis player who is the current British number one doubles player. He has reached eight grand slam finals in total: (4 Doubles, 4 Mixed), he has won the mixed doubles at the 2007 Wimbledon Championships, 2017 Wimbledon Championships and 2017 US Open, and the men's doubles at the 2016 Australian Open and 2016 US Open, and has finished as runner-up in the men's doubles tournament at the 2015 Wimbledon Championships and 2015 US Open and in mixed doubles at the 2008 US Open. Murray has been ranked as high as World No. 1 in the ATP doubles rankings, and was the first Britain to be ranked as world number one since the introduction of computerised world rankings in the 1970s. He is currently ranked at world No. 5.
Document 2: Andrea Hlaváčková: Andrea Hlaváčková (] ; born 10 August 1986) is a professional tennis player from the Czech Republic. Her highest singles ranking is world No. 58, which she reached in September 2012, and her highest doubles ranking is No. 3, reached on 22 October 2012. In her career, Hlaváčková has won 22 WTA doubles titles, as well as 19 ITF doubles and eight ITF singles titles. She has won two Grand Slam doubles titles, the 2011 French Open and the 2013 US Open, both times partnered with Lucie Hradecká. The pair are also the 2012 Olympic silver medallists. Hlaváčková was part of the winning Czech team in Fed Cup 2012 and also won the mixed doubles title at the 2013 US Open paired with Max Mirnyi.
Document 3: 2010 Farmers Classic – Doubles: Bob and Mike Bryan successfully defended their title, defeating Eric Butorac and Jean-Julien Rojer in the finals 6–7, 6–2, [10–7]. The twin brothers set a record of 62 career doubles titles on the ATP Tour, surpassing The Woodies (Todd Woodbridge and Mark Woodforde). Rojer, who was a UCLA tennis player (1999-2002), returned to play on his college home court.
Document 4: Petra Kvitová career statistics: This is a list of the main career statistics of Czech professional tennis player Petra Kvitová. To date, Kvitová has won 20 singles titles including two Grand Slam singles titles at the Wimbledon Championships, one WTA Tour Championships singles title, two WTA Premier Mandatory singles titles and four WTA Premier 5 singles titles. She was also the bronze medallist at the 2016 Rio Olympics, a semifinalist at the 2010 Wimbledon Championships, 2012 Australian Open and 2012 French Open and a quarterfinalist at the 2011 Australian Open, 2012 Wimbledon Championships, 2013 Wimbledon Championships, 2015 US Open and 2017 US Open. Kvitová reached her career-high ranking of world no. 2 on 31 October 2011.
Document 5: Květa Peschke: Květoslava Peschkeová, (née Hrdličková; born 9 July 1975) better known as Květa Peschke, is a professional tennis player from the Czech Republic.
Document 6: Jean-Julien Rojer: Jean-Julien Rojer (] ; born 25 August 1981) is a Dutch professional tennis player from Curaçao. His highest ATP singles ranking is 218th, which he achieved on 15 August 2005. A doubles specialist, his career-high in doubles is World No. 3, which he reached in November 2015. His former doubles partners include Eric Butorac and Aisam-ul-Haq Qureshi. He currently plays with Horia Tecău of Romania, with whom he won the men's double titles in the 2015 Wimbledon and 2017 US Open championships. With Anna-Lena Grönefeld, he also won the mixed doubles' title at the 2014 French Open. He attended UCLA where he competed for the UCLA Bruins men's tennis team.
Document 7: Květa Peschke career statistics: This is a list of the main career statistics of professional Czech tennis player Květa Peschke.
Document 8: Horia Tecău: Horia Tecău (] ; born January 19, 1985) is a Romanian tennis player currently ranked World No. 9 in doubles. He turned pro in 2003 and reached the men's doubles finals of the 2010, 2011 and 2012 Wimbledon Championships with Robert Lindstedt before winning it in 2015 with Jean-Julien Rojer, with whom he also won the 2017 US Open. Tecău also won the 2012 Australian Open mixed doubles title with Bethanie Mattek-Sands and the 2015 ATP World Tour Finals with Rojer.
Document 9: Helena Suková: Helena Suková (] ) (born 23 February 1965) is a former professional tennis player from the Czech Republic. During her career, she won 14 Grand Slam doubles titles, 9 of them in women's doubles and 5 of them in mixed doubles. She also was a four-time Grand Slam singles runner-up and won 10 singles titles and 69 doubles titles.
Document 10: Petra Cetkovská: Petra Cetkovská (] ; born 8 February 1985 in Prostějov, Czechoslovakia) is a professional tennis player from the Czech Republic. She reached her career-high singles ranking world no. 25 in June 2012. Over her career, Cetkovská has beaten top players: Marion Bartoli, Elena Dementieva, Ana Ivanovic, Angelique Kerber, Li Na, Agnieszka Radwańska, Caroline Wozniacki, and Vera Zvonareva.
Document 11: Lucie Šafářová: Lucie Šafářová (] ; born 4 February 1987) is a Czech professional tennis player from Brno. She is currently the WTA world No. 1 doubles player. Šafářová has won seven WTA tour singles titles, fifteen doubles titles and reached the quarterfinals of the 2007 Australian Open by upsetting defending champion Amélie Mauresmo in the fourth round. She reached her first Grand Slam semifinal at the 2014 Wimbledon Championships and her first Grand Slam final at the 2015 French Open. She also won the 2015 Australian Open, 2015 French Open, 2016 US Open, 2017 Australian Open and 2017 French Open women's doubles titles partnering with Bethanie Mattek-Sands.
Document 12: Ivan Dodig: Ivan Dodig (born 2 January 1985) is a Croatian tennis player. His career-high ATP rankings are world No. 29 in singles and world No. 4 in doubles. Dodig is a Grand Slam champion after winning the 2015 French Open men's doubles title with Marcelo Melo.
Document 13: Rohan Bopanna: Rohan Bopanna (born 4 March 1980) is an Indian professional tennis player. His singles career high ranking was World No. 213 in 2007 and his career high ranking in doubles was World No. 3 on 22 July 2013. Recently, most of his appearances in professional tournaments have been in doubles matches. He is a member of the Indian Davis Cup team since 2002. In 2010, he finished as a runner-up in doubles at the US Open, partnering with Aisam-ul-Haq Qureshi. He won the 2017 French Open - Mixed Doubles title with Gabriela Dabrowski of Canada becoming the fourth Indian player to win a Grand Slam title.
Document 14: Lucie Hradecká: Lucie Hradecká (] ; born 21 May 1985 in Prague) is a professional tennis player from the Czech Republic. In her career, Hradecká has won 19 WTA doubles titles, and two Grand Slam titles, the 2011 French Open and the 2013 US Open, partnered both times by fellow Czech Andrea Hlaváčková. The pair are also the 2012 Olympic silver medallists in doubles. She has also won a mixed doubles Grand Slam title, the 2013 French Open with František Čermák. Her biggest singles career highlight to date was defeating former world number one Ana Ivanovic in the first round of the 2015 Australian Open.
Document 15: 2015 Wimbledon Championships – Men's Doubles: Vasek Pospisil and Jack Sock were the defending champions, but lost in the third round to Jamie Murray and John Peers. Jean-Julien Rojer and Horia Tecău won the title by defeating Murray and Peers in the final by a score of 7–6, 6–4, 6–4.
ground_truth: yes