Mo Farah has withdrawn from Sunday's London Marathon after suffering a hip injury, sparking fresh doubts over the four-time Olympic champion's competitive future.

The 39-year-old has raced just seven times since October 2019 and said he felt his track career was over after being beaten by club runner Ellis Cross at the Vitality London 10,000 in May.

Having suffered from discomfort in his right hip, Farah revealed he would miss the London Marathon – which he finished third in four years ago – on Wednesday but aims to compete next year.

"I've been training really hard over the past few months and I'd got myself back into good shape and was feeling pretty optimistic about being able to put in a good performance," Farah said.

"However, over the past 10 days I've been feeling pain and tightness in my right hip. I've had extensive physio and treatment and done everything I can to be on the start line, but it hasn't improved enough to compete on Sunday.

"I wish everyone taking part on Sunday a good run and I hope to be back out there with you in April 2023."