Marc Polmans, with Andrew Whittington, reached the semi-final of a tennis tournament where who were the defending champions?
2017 Australian Open – Men's Doubles Jamie Murray and Bruno Soares were the defending champions, but lost in the first round to Sam Querrey and Donald Young.
2013 Wimbledon Championships – Men's Doubles Jonathan Marray and Frederik Nielsen were the defending champions, but decided not to play together. Marray played alongside Colin Fleming, but lost to Robert Lindstedt and Daniel Nestor in the third round. Nielsen paired up with Grigor Dimitrov, but lost to Julien Benneteau and Nenad Zimonjić in the second round.