Given the task definition and input, reply with output. In this task, you are given a context paragraph, a question based on that and corresponding answer of a question. Your task is to generate supporting fact/knowledge from context paragraph which helps in answering a given question.

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 Molcan in the final, 06, 62, [108]. He reached the semi-final of the 2017 Australian Open Men's Doubles with Andrew Whittington. Question: Marc Polmans, with Andrew Whittington, reached the semi-final of a tennis tournament where who were the defending champions? Answer: Jamie Murray and Bruno Soares
He reached the semifinal of the 2017 Australian Open Mens Doubles with Andrew Whittington.