Athletics - Jamaica National Racers Grand Prix - Kingston - 11/06/16 Yohan Blake (L), winner Usain Bolt (C) and Asafa Powell in action during men's 100m race. REUTERS/Gilbert Bellamy TPX IMAGES OF THE DAY

Athletics - Jamaica National Trials - Kingston - 03/07/16 Winner Yohan Blake (L) and Julian Forte (R) in action during men's 200m final race. REUTERS/Gilbert Bellamy

2016 Rio Olympics - Golf - Preliminary - Training session - Olympic Golf Course - Rio de Janeiro, Brazil 10/08/2016. Justin Rose (GBR) of Great Britain hits a tee shot during practice session. REUTERS/Andrew Boyers

Emblems of VW Golf VII car are pictured in a production line at the plant of German carmaker Volkswagen in Wolfsburg, February 25, 2013. REUTERS/Fabian Bimmer/File Photo - RTSKOGI

2016 Rio Olympics - Golf - Preliminary - Men's Individual Stroke Play - Olympic Golf Course - Rio de Janeiro, Brazil - 11/08/2016. - From left, Byeong Hun An (KOR) of Korea, Graham DeLaet (CAN) of Canada and Adilson de Silva (BRA) of Brazil shake hands on the first tee before the start of the Men's Olympic Golf compeititon. REUTERS/Andrew Boyers

2016 Rio Olympics - Golf - Preliminary - Men's Individual Stroke Play - Olympic Golf Course - Rio de Janeiro, Brazil - 11/08/2016. - Graham DeLaet (CAN) of Canada hits his tee shot on the first hole during the first round of the men's Olympic golf compeititon . REUTERS/Andrew Boyers

Switzerland's Martina Hingis (R) and India's Sania Mirza celebrate after winning their doubles final match at the Australian Open tennis tournament at Melbourne Park, Australia, January 29, 2016. REUTERS/Thomas Peter

Alex Schwazer of Italy walks on his way to win the 50 kilometres race walk at the World Race Walking Team Championships in Rome, Italy, May 8, 2016. REUTERS/Max Rossi