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.
Jake Delaney Jake Delaney (born 14 May 1997 in Sydney) is an Australian tennis player. Delaney won the 2015 Australian Open – Boys' Doubles title with fellow Australian Marc Polmans, defeating Hubert Hurkacz and Alex Molčan in the final, 0–6, 6–2, [10–8].