Rio 2016: Five to watch Day 9 – Andy Murray v Juan Martin del Potro

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Andy Murray looks to retain gold against a resurgent Juan Martin del Potro, winner already over Novak Djokovic and Rafael nadal, at the Olympic Games on Sunday, August 14, as The National sports editor Graham Caygill takes you through the action in Rio on Day 9. All event times UAE.

• Rio 2016 TV: How to watch the Olympics in the UAE + schedules

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Women’s marathon

The first athletics medal to be decided today will be in the women’s marathon, which starts at 4.30am UAE time, with favourite Jemima Jelagat Sumgong looking to become the first Kenyan woman to win the event. Sumgong is in good form ahead of the 26.2 mile race, having recovered from an early fall to win the London Marathon in April.

Women’s triple jump

Colombian Caterine Ibarguen has been the dominant force of women’s triple jumping since finishing runner-up in the 2012 London Games, winning two world titles since then. The Colombian is favourite in the final, which starts at 3.55am tomorrow UAE time, but Olga Rypakova, the Kazakhstani who beat her in London, will be her main threat.

Men’s tennis singles final

World No 2 Andy Murray will today bid to be the first player to ever retain the men’s singles Olympics title. The Briton, who picked up gold at London 2012, reached the final in Rio with a 6-1, 6-4 victory over Japan’s Kei Nishikori in yesterday’s semi-final. The three-time grand slam winner will go up against Juan Martin del Potro in the final.

Women’s sprint cycling

The opening day of the women’s individual sprint cycling competition begins today with the qualifying round and the last-16 races taking place at the Velodrome. Australian Anna Meares, who won the 2012 sprint title, is the favourite to retain her title. The quarter-finals and semi-finals are tomorrow, with the gold medal on Monday.

Men’s hockey

It is quarter-final day in the men’s hockey tournament and 2012 winners Germany are up against New Zealand after winning Group B, while the Netherlands, runners-up in London four years ago face Australia. Group A winners Belgium are up against India. The first game of the day, which starts at 5pm, is Spain facing Argentina.