Question: Who is a successful doubles player with three Grand Slam championships and an Olympic silver medal, and has also had success in singles, winning five career titles, Michaël Llodra or Boris Becker?
Context: Boris Franz Becker (] ; born 22 November 1967) is a German former world No. 1 professional tennis player.  He was successful from the start of his career, winning the first of his six major singles titles aged 17.  He also won five year-end championships, 13 Masters Series titles, and an Olympic gold medal in doubles.  "Tennis" magazine ranked him the 11th best male player of the period 1965–2005. This is a list of the main career statistics of professional Australian tennis player, Samantha Stosur.  To date, Stosur has won eight WTA singles titles including one Grand Slam singles title at the 2011 US Open.  She was also the runner-up at the 2010 French Open and a semi-finalist at the 2010 and 2011 WTA Tour Championships.  Stosur has also enjoyed a successful doubles career, in which she has held the World No. 1 ranking and won twenty-four WTA doubles titles including two grand slam women's doubles titles at the 2005 US Open and 2006 French Open and two year-ending championships at the 2005 and 2006 WTA Tour Championships. Emilio Ángel Sánchez Vicario (born 29 May 1965) is a former professional tennis player from Spain.  He won three Grand Slam doubles titles and the men's doubles silver medal at the 1988 Olympic Games.  He is the brother of multiple Grand Slam winner Arantxa.  Sanchez since retiring captained his nation to Davis Cup success in 2008.  In 2012 Sanchez was a tournament director for two wheelchair tennis events. Martina Hingis (born 30 September 1980) is a Swiss professional tennis player, a former world No. 1 singles player and currently ranked world No. 2 in doubles by the WTA.  She has spent a total of 209 weeks as the singles No. 1 and has won five Grand Slam singles titles, thirteen Grand Slam women's doubles titles, winning a calendar-year doubles Grand Slam in 1998, and seven Grand Slam mixed doubles titles; for a combined total of twenty-five major titles.  In addition, she has won the season-ending WTA Championships two times in singles and three times in doubles, and an Olympic silver medal. Bob Bryan and Mike Bryan were the defending champions, however were defeated in the final by Arnaud Clément and Michaël Llodra.  The French duo won their first Grand Slam as a team, however this was Llodra's third, having won the Australian Open twice previously with Fabrice Santoro in 2003 and 2004. Daniel Nestor and Nenad Zimonjić were the defending champions, but decided not to participate together.  Nestor partnered Max Mirnyi, while Zimonjić teamed up with Michaël Llodra.  Mirnyi and Nestor defeated Zimonjić and Llodra in the semifinals, 7–6, 7–6.  In the final, they won against Juan Sebastián Cabal and Eduardo Schwank 7–6, 3–6, 6–4 for their first Grand Slam doubles title as a team. This is a list of the main career statistics of French professional tennis player, Jo-Wilfried Tsonga.  To date, Tsonga has won 15 ATP titles in singles, including 2 Masters titles at the 2008 Paris Masters and the 2014 Canada Masters.  He was also the runner-up at the 2008 Australian Open and 2011 ATP World Tour Finals in singles.  In addition, he was a silver medalist in men's doubles with Michaël Llodra at the 2012 London Olympics. Michaël Llodra (] ; born 18 May 1980) is a French former professional tennis player.  He is a successful doubles player with three Grand Slam championships and an Olympic silver medal, and has also had success in singles, winning five career titles and gaining victories over Novak Djokovic, Juan Martín del Potro, Tomáš Berdych, Robin Söderling, Jo-Wilfried Tsonga, Nikolay Davydenko, Janko Tipsarević and John Isner.  Llodra has been called "the best volleyer on tour". Sonchat Ratiwatana (Last name pronounce : Ra-Ti-Wat) (Thai: สนฉัตร รติวัฒน์ 'ต้น') (born January 23, 1982 in Bangkok) is a professional tennis player from Thailand.  In 2007, Sonchat and his twin brother Sanchai Ratiwatana won their first ATP doubles title in Bangkok in their home country.  In the final, the team beat 2007 Wimbledon men's doubles winner Michaël Llodra and 2007 U.S. Open men's doubles semifinalist Nicolas Mahut.  He reached his highest doubles ranking at world number 39 as of 28 April 2008.  He plays right-handed and turned professional in 2004.  He and his twin brother played in their first grand slam tournament during the Australian Open in 2008, where they lost to the eventual finalist pairing of Arnaud Clément & Michaël Llodra of France in the first round. The Williams sisters are two professional American tennis players: Venus Williams (b. 1980), a seven-time Grand Slam title winner (singles), and Serena Williams (b. 1981), twenty-three-time Grand Slam title winner (singles), both of whom were coached from an early age by their parents Richard Williams and Oracene Price.  There is a noted professional rivalry between them – between the 2001 US Open and the 2017 Australian Open tournaments, they met in nine Grand Slam singles finals.  They became the first two players, female or male, to play in 4 consecutive grand slam singles finals from the 2002 French Open to the 2003 Australian Open; Serena famously won all 4 to complete the first of two "Serena Slams".  Between 2000 and 2016, a 17-year span, they collectively won 12 Wimbledon singles titles (Venus won 5 and Serena won 7).  By winning the 2001 Australian Open women's doubles title, they became the 5th pair to complete the Career Doubles Grand Slam and the only pair to complete the Career Doubles Golden Slam.  At the time, Venus and Serena were only 20 and 19 years old, respectively.  Since then they have gone on to add another two Olympic gold medals in the 2008 Beijing Olympics and the 2012 London Olympics.  Nearly a decade later, the duo would go on to win 4 consecutive grand slam doubles titles from 2009 Wimbledon through 2010 Roland Garros, which would catapult them to co-No.  1 doubles players on 7 June 2010.  Two weeks later, on 21 June 2010, Serena would hold the No. 1 singles ranking and Venus would be right behind her at No. 2 in singles.  Their most recent grand slam doubles titles came at the 2012 Wimbledon & 2016 Wimbledon events.  They remain very close, often watching each other's matches in support, even after one of them has been knocked out of a tournament.
Answer: Michaël Llodra