Nick Kyrgios is unsure whether he will be fit enough to compete at the Australian Open after his first singles match in 18 months left him in "throbbing" pain.

Nick Kyrgios was defeated by Mpetshi Perricard in his first singles match since an 18-month injury lay-off. Map shows US states where 'damaging' Arctic blast will hit first - and more to come I Was Diagnosed With Autism At 46 – Here's 5 Things I've Learned 21 rockin' New Year's Eve movies to watch before the ball drops Snoop Dogg’s Trick for Cooking Bacon Is Genius The 20-minute rule and other easy ways to drink less alcohol Retirees Don’t Have To Pay Taxes on These Kinds of Income The 11 Rudest Things You Can Do In Someone Else’s House,