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.
2003 Wimbledon Championships – Men's Doubles Jonas Björkman and Todd Woodbridge defended their title, defeating Mahesh Bhupathi and Max Mirnyi 3–6, 6–3, 7–6, 6–3 in the final to win the Gentlemen's Doubles title at the 2003 Wimbledon Championships.