Nick Kyrgios ruled out playing singles at the Australian Open on Friday, focusing only on doubles with five-set matches "a different beast".

US snowboarding star Chloe Kim said she had suffered a dislocated shoulder in training, just weeks before she bids to win a third consecutive gold medal at next month's Winter Olympics.

Arsenal wasted the chance to move eight points clear at the top of the Premier League as Liverpool came to life in a 0-0 draw at the Emirates Stadium.

The tournament hosts are the favourites to win the competition given their home advantage as well as the fact they are Africa's leading side in the FIFA world rankings.