Question: Does Vasek Pospisil have a higher tennis World singles ranking than Michael Stich?  

Context articles: Michael Stich
Canada at the Hopman Cup
2016 BNP Paribas Open – Men's Doubles
2011 Jalisco Open – Doubles
Vasek Pospisil
2015 Swiss Indoors – Doubles
2016 China Open – Men's Doubles
2017 Kunal Patel San Francisco Open – Singles
2017 ABN AMRO World Tennis Tournament – Doubles
2010 Samsung Securities Cup – Doubles

Michael Detlef Stich (born 18 October 1968) is a former professional tennis player from Germany.
 He won the men's singles title at Wimbledon in 1991, the men's doubles titles at both Wimbledon and the Olympic Games in 1992, and was a singles runner-up at the 1994 US Open and the 1996 French Open.
 Stich won 18 singles titles and 10 doubles titles.
 His career-high singles ranking was World No. 2 in 1993.
Canada is a nation that has competed at the Hopman Cup tennis tournament on three occasions, in 2004, 2014 and 2015.
 In 2004, the team of Maureen Drake and Frank Dancevic was defeated in the qualification play-off and as such did not compete in the round robin, except to stand in for the injured Belgium team for the final round robin tie against Hungary.
 Milos Raonic and Eugenie Bouchard represented Canada in 2014 and finished second in Group A. Bouchard represented Canada once again in 2015, this time with Vasek Pospisil, and ranked second in Group A for the second straight year.
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.
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.
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.
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.
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].
Zhang Ze won the title after defeating Vasek Pospisil 7–5, 3–6, 6–2 in the final.
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.
Rik de Voest and Lu Yen-hsun were the defending champions, but they did not compete in 2010 (Lu chose to play only in singles tennis).
<br>Rameez Junaid and Frank Moser won the final against Vasek Pospisil and Adil Shamasdin 6–3, 6–4.