By Press Association
Published: 07:35 GMT, 1 January 2019 | Updated: 07:37 GMT, 1 January 2019
A visibly emotional Andy Murray said he does not know how much longer he will play competitive tennis as he kicked off the new year with a tough first-round win at the Brisbane International.
The former world number one appeared to fight back tears as he reflected on his battle to resume his career following hip surgery, saying it had been 'really hard'.
Murray progressed to the second round on Tuesday with a 6-3, 6-4 victory over Australian wildcard James Duckworth.
Andy Murray returned to the tennis circuit with victory in the first stage of the Brisbane Open
Murray took the win with a comfortable 6-3, 6-4 scoreline over opponent James Duckworth
Australian wildcard Duckworth was no match for the two-time Wimbledon winner
Speaking in his on-court interview after the match, the Scot said of his recovery: 'It's not easy to sort of sum up in one sentence or one answer, it's been really hard; 18 months, a lot of ups and downs, it's been tricky to just get back on the court competing again.
'So I'm happy I'm