Staying with football. Usain Bolt has finally spilled the beans over his 'mysterious' football signing. The Olympic track and field legend confirmed on Twitter he will play at Manchester United's iconic Old Trafford stadium in a charity match.

Incidentally, Bolt sparked wild speculation when he teased on social media he had "signed" for a soccer team. However, the Jamaican sprinter ended the speculation when he announced he would be part of a Soccer Aid for Unicef charity football match alongside British pop star Robbie Williams. The match is scheduled to be held June 10th. A video posted online by the charity unveiled the 31-year-old as the captain of a World XI that will face Williams' England side in the annual charity match. Bolt, who is a die-hard Red Devils fan, previously said he is serious about starting up a soccer career and believes he could even be good enough to play for Jamaica.