Andy Murray: World number one 'has work to do' in 2017

Andy Murray

World number one Andy Murray says he has “work to do this year” after falling “behind” six other players over the course of 2017.

The rankings are calculated over a 12-month period but six of Murray’s rivals have accrued more points this year.

“When we start on 1 January, it’s back to square one,” said the Briton, who is in Indian Wells having won his first title of the year in Dubai last week.