Gilles Muller; Credit: Jan McIntyre

Luxembourg's Gilles Muller, seeded #5 going into this week's Brisbane International tennis championship in Australia, lost his first round match to 21 year-old Hyeon Chung of South Korea who is ranked #58 in the world.
 
The score was 6-3, 7-6 to Chung.
 
34 year-old Gilles Muller is ranked #25 in the world after a hugely successful 2017 in which he reached the Wimbledon quarter-finals after defeating Rafael Nadal in a marathon match, and won the Sydney Open as well as s-Hertogenbosch in The Netherlands.