Amir Khan has played up the idea of facing former stablemate Manny Pacquiao now that Floyd Mayweather has hung up his gloves ‘for good’. The British boxer said he would love to face Pacquiao, maintaining that Mayweather had snubbed him because he was scared of losing // Meanwhile Roger Federer has confirmed he has no plans to retire just yet, despite having lost in the US Open final to Novak Djokovic. The Swiss legend will continue, saying ‘I’ll see you guys next year’. In F1 the Singapore Grand Prix could be cancelled as plumes of smoke continue to descend on the Yas Marina Circuit. Smoke from forest fires in nearby Indonesia is the case of the problem, creating unhealthy levels of air pollution Lastly it’s across to UFC, where Nick Diaz has been banned for five years and fined $165,000 for testing positive for marijuana.