Britain's Andy Murray returns against Japan's Kei Nishikori during their round robin stage men's singles match on day four of the ATP World Tour Finals tennis tournament in London on November 16, 2016Murray was pushed to his limits by Nishikori in the longest Tour Finals match played in the event's seven years at London's O2 Arena. It is the first time Murray has started the Tour Finals with two consecutive group stage wins since his tournament debut in Shanghai in 2008. To guarantee finishing 2016 in pole position, Murray must win the Tour Finals for the first time, with anything less giving Djokovic the chance to overhaul him. While saving break points in the third and fifth games of the first set, Murray was pushed so hard that his wedding ring, which he keeps tied to his shoe, fell off. Nishikori responded by levelling at four-all, only for Murray to break again and close out the set.

Source: Bangkok Post November 16, 2016 18:45 UTC