Marat Safin and Dmitry Tursunov were the defending champions.
 They were both present but did not compete together.
 Safin partnered with Teymuraz Gabashvili, but lost in the first round to Stephen Huss and Ross Hutchins.
 Tursunov partnered with Igor Kunitsyn, but they were forced to withdraw due to a shoulder injury for Tursunov before their quarterfinals match against Sergiy Stakhovsky and Potito Starace.
Stephen Huss and Ross Hutchins were the defending champions but decided not to participate.
 However Huss chose not to compete and Hutchins teamed up with Colin Fleming.
 The French pair formed by Nicolas Mahut and Édouard Roger-Vasselin beat in the final the 3rd seeded Paul Hanley and Jamie Murray with the score 6–4, 7–6.
Stephen Huss and Ross Hutchins were the defending champions, but they chose to participate at the Rakuten Japan Open Tennis Championships instead.
Jack Sock (born September 24, 1992) is an American professional tennis player who is currently ranked world No. 21 in men's singles by the Association of Tennis Professionals (ATP).
 He is one of the top ranked American men in both singles and doubles on the ATP Tour.
 A former junior US Open champion, Sock's singles success is highlighted by 7 ATP finals, including three titles.
 His career best result came at the 2017 Indian Wells Masters, where he reached the semi-finals.
Psyche are a Canadian dark synthpop band, now based in Germany.
 They are centered on singer Darrin Huss, who has been the only constant member, with various line-ups including his brother Stephen Huss, later followed by David Kristian, Per-Anders Kurenbach, and Remi Szyszka, all recording albums with Darrin under the name Psyche.
Ashley Fisher and Stephen Huss were the defending champions but decided not to participate.
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Devin Bowen and Ashley Fisher were the defending champions, but Bowen did not participate this year.
 Fisher partnered Stephen Huss, losing in the first round.
Stephen Huss and Wesley Moodie were the defending champions, however were defeated in the third round by 8th seeds Simon Aspelin and Todd Perry.
 American twin brothers Bob Bryan and Mike Bryan won their first Wimbledon title, defeating Fabrice Santoro and Nenad Zimonjić in the final.
 By winning the 2006 Doubles title, the Bryan Brothers completed the career Grand Slam, having also won the 2005 US Open and the Australian Open earlier that year.
Vasek Pospisil and Jack Sock were the defending champions, but Pospisil chose to play in Tokyo instead.
 Sock played alongside Bernard Tomic but lost in the final to Pablo Carreño Busta and Rafael Nadal, who won 6−7, 6−2, [10−8].
Stephen Huss (born 10 December 1975), is a former professional tennis player from Australia.
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Question: Which profession do Stephen Huss and Jack Sock have in common?
Answer: professional tennis player