Novak Djokovic has posted a scan of his injured left hamstring on social media more than 24 hours after being booed at the Australian Open when he quit playing one set into his semifinal because of what he said was a torn muscle.

Aston Villa missed a chance to draw closer to the Premier League's top four on Sunday in a 1-1 draw at home to West Ham United whose Brazilian left back Emerson rescued a point after Jacob Ramsey had got the hosts off to a dream start.