Question: 2007 Open 13 – Doubles: Martin Damm and Radek Štěpánek were the defending champions, Štěpánek partnered with which retired Indian professional tennis player, but withdrew from the first round?
Context: The 2002 Canada Masters – Doubles was the men's singles event of the one hundred and thirteenth edition of the Canada Masters; a WTA Tier I tournament and the most prestigious men's tennis tournament held in Canada.  Jiří Novák and David Rikl were the defending champions but they competed with different partners that year, Novák with Radek Štěpánek and Rikl with David Prinosil.  Novak and Štěpánek lost in the second round to Mark Knowles and Daniel Nestor.  Prinosil and Rikl lost in the semifinals to Bob Bryan and Mike Bryan.  The Bryans won in the final 4–6, 7–6, 6–3 against Knowles and Nestor. Martin Damm and Radek Štěpánek were the defending champions but they competed with different partners that year, Damm with Cyril Suk and Štěpánek with Jiří Novák. Mahesh Shrinivas Bhupathi (born 7 June 1974) is a retired Indian professional tennis player.  In 1997, he became the first Indian to win a Grand Slam tournament (with Rika Hiraki).  With his win at the Australian Open mixed doubles in 2006, he joined the elite group of eight tennis players who have achieved a career Grand Slam in mixed doubles.  He is also the founder of International Premier Tennis League.  In December 2016, Bhupathi was appointed as India's next non-playing Davis Cup captain and took over the reins from Anand Amritraj in February 2017. Petr Luxa and Radek Štěpánek were the defending champions but only Štěpánek competed that year with Martin Damm. Martin Damm and Radek Štěpánek were the defending champions.  Damm did not participate this year.  Štěpánek partnered with Mahesh Bhupathi, but withdrew from the first round. Radek Štěpánek (] ; born 27 November 1978) is a professional tennis player from the Czech Republic.  His career-high singles ranking is world No. 8 and best doubles ranking is world No. 4.  Štěpánek's biggest achievements are reaching two Masters 1000 event finals and the quarterfinals of Wimbledon in 2006, as well as winning the deciding match for Czech Republic's Davis Cup winning team in 2012 and again in 2013.  In doubles, he won his first Grand Slam title at the 2012 Australian Open, along with Indian partner Leander Paes, defeating the Bryan Brothers in the final.  Paes and Štěpánek also won the men's doubles title at the 2013 US Open, defeating Bruno Soares and Alexander Peya in the final. Martin Damm and Radek Štěpánek were the defending champions.  Damm partnered with Leander Paes, losing in the semifinals.  Štěpánek partnered with Tomáš Berdych, losing in the quarterfinals. Martin Damm and Radek Štěpánek were the defending champions and successfully defended their title, winning in the final 6–2, 6–7, [10–3], against Mark Knowles and Daniel Nestor. Radek Štěpánek and Michal Tabara were the defending champions but only Štěpánek competed that year with Leoš Friedl. Leander Paes and Radek Štěpánek were the defending champions, but Štěpánek chose not to compete.  Paes played alongside Daniel Nestor, but lost in the second round to Robert Lindstedt and Vasek Pospisil. <br>
Answer: Mahesh Bhupathi