Marc Polmans, with Andrew Whittington, reached the semi-final of a tennis tournament where who were the defending champions?
Marc Polmans Marc Polmans (born 2 May 1997) is a South African born Australian tennis player. Polmans won the 2015 Australian Open – Boys' Doubles title with fellow Australian Jake Delaney, defeating Hubert Hurkacz and Alex Molčan in the final, 0–6, 6–2, [10–8]. He reached the semi-final of the 2017 Australian Open – Men's Doubles with Andrew Whittington.
2012 Sony Ericsson Open – Men's Singles The 2012 Sony Ericsson Open was a tennis tournament played at Key Biscayne, Miami, Florida from March 19 to April 1, 2012. It was the 28th edition of the Sony Ericsson Open and was played on hard courts at the Tennis Center at Crandon Park. The event was part of the 2012 ATP World Tour and 2012 WTA Tour. Novak Djokovic was the defending champion, and successfully defended his title by defeating Andy Murray 6–1, 7–6 in the final. It was Djokovic's third Sony Ericsson Open title.