Question: What was the name of the championship series Robert Seguso and Vasek Pospisil  were involved with?

Context paragraphs:
2013 Shanghai Rolex Masters – Doubles: 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>

Robert Seguso: Robert Arthur Seguso (born May 1, 1963) is a former professional tennis player from the United States.  A doubles specialist, he won four Grand Slam men's doubles titles (two Wimbledon, one French Open and one US Open).  He also won the men's doubles Gold Medal at the 1988 Olympic Games in Seoul, partnering Ken Flach.  Seguso reached the World No. 1 doubles ranking in 1985.  He won a total of 29 career doubles titles between 1984 and 1991.

2017 Kunal Patel San Francisco Open – Singles: Zhang Ze won the title after defeating Vasek Pospisil 7–5, 3–6, 6–2 in the final.

Vasek Pospisil: Vasek Pospisil (, ] ; born June 23, 1990) is a Canadian professional tennis player.  He is the No. 3 male ranked player in Canada, after Milos Raonic and Denis Shapovalov.  Pospisil has a career-high World singles ranking of 25, and No. 4 in doubles.  As Canada's currently ranked No. 3 in singles and No. 3 in doubles, he is an important member of the Canada Davis Cup team.  Along with partner Jack Sock, he won the 2014 Wimbledon Championships and the 2015 Indian Wells Masters men's doubles titles.  He also reached the quarterfinals in singles at the 2015 Wimbledon Championships.

2011 Jalisco Open – Doubles: Vasek Pospisil and Bobby Reynolds won the first edition of this tournament, beating Pierre-Ludovic Duclos and Ivo Klec 6–4, 6–7(6), [10–6] in the final.

2016 China Open – Men's Doubles: 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].

2017 ABN AMRO World Tennis Tournament – Doubles: Nicolas Mahut and Vasek Pospisil were the defending champions, but Pospisil chose not to participate this year.  Mahut played alongside Pierre-Hugues Herbert, but lost in the semifinals to Ivan Dodig and Marcel Granollers.

2015 Swiss Indoors – Doubles: Vasek Pospisil and Nenad Zimonjić were the defending champions, but Pospisil decided not to participate.  Zimonjić plays alongside Marcin Matkowski but lost to Alexander Peya and Bruno Soares in the quarterfinals.

2014 Wimbledon Championships – Men's Doubles: Bob and Mike Bryan were the defending champions, but lost to Vasek Pospisil and Jack Sock in the final, 7–6, 6–7, 6–4, 3–6, 7–5.

2016 BNP Paribas Open – Men's Doubles: Vasek Pospisil and Jack Sock were the defending champions, but lost in the final to Pierre-Hugues Herbert and Nicolas Mahut, 3–6, 6–7.

Supporting paragraphs: Robert Seguso Vasek Pospisil
Answer: Wimbledon Championships