Mo Farah pulls out of Sunday's London Marathon due to hip injury

Mo Farah of Britain reacts after winning the men's 5000m event during the 15th IAAF World Championships at the National Stadium in Beijing, China August 29, 2015. REUTERS

Four-time Olympic champion Sir Mo Farah has pulled out of the London Marathon due to a hip injury.

The 39 year-old returned to the track in 2020 after three years of focusing on the marathon but failed to qualify for last year's delayed Tokyo Olympics.