McIlroy may opt out of Rio Games

Rory McIlroy says he may opt out of playing at Rio 2016 Olympic Games to avoid making a choice between playing for Great Britain or Ireland.

McIlroy also talks of the major changes which have followed his rise to world number one, including moving from Belfast to the United States.

McIlroy's girlfriend, tennis player Caroline Wozniacki, speaks about how the two top sports stars support each other in their careers.