Mo Farah's best London Marathon finish was third place in 2018 ©Getty Images

Britain's four-time Olympic gold medallist Sir Mo Farah has been confirmed for the men's elite race at the 2023 London Marathon, in what is set to be his farewell season in the sport.

Sir Mo is set to feature among a high-quality elite men's field, which features four of the five fastest marathon runners in history.

Ethiopia's Kenenisa Bekele, the second fastest man ever with a time of 2hr 1min 41sec, and Kelvin Kiptum of Kenya, the fastest marathon debutant in history after winning in Valencia last year in a time of 2:01.53, have both been confirmed among the line-up.

Ethiopians Birhanu Legese and Mosinet Geremew, who both have personal bests under 2hrs 3mins are also among the line-up.

Defending champion Amos Kipruto of Kenya, who registered his first World Marathon Major when triumphing in London last year, returns to defend his title, while world marathon champion Tamirat Tola of Ethiopia is also set to feature as part of the field. 

Among the other international stars to watch are Ethiopia's Leul Gebresilase, who finished second in London last year, and double New York City Marathon champion Geoffrey Kamworor of Kenya.

Home interest is set to revolve around Sir Mo, who won the men's race in the Big Half on the streets of London last September over half the marathon distance, but was forced to miss the 2022 race itself last October because of a hip injury.

"It's been an amazing career and taking part in the London Marathon is a very big deal," Sir Mo said.

"I was gutted not to race last year and I just want to give it one more shot."

The race is due to return to its traditional spring place in the calendar for 2023 and is scheduled for April 23.

Sir Mo turns 40 in March, exactly one month before the London Marathon.

He has indicated that this will be his last competitive season, although he refused to speculate on whether London would be his final big appearance.

"I’m not a spring chicken any more, you can’t keep coming back in the right shape and I’d love to be able to finish it at home," Sir Mo said. 

"We are getting closer to the end of my career, for sure.

"I’ll do London and see where I am, who knows? Honestly, it depends on my body." 

Sir Mo did not rule out competing in the 2023 World Athletics Championships, which are set to take place in Budapest.

"I'm not going to go to the Olympics and I think 2023 will be my last year, but if it came down to it towards the end of the year and you did get picked for your country, I'd never turn that down," Farah promised.

Sir Mo completed the 5,000 and 10,000 metres double at the 2010 European Championships and won his first global gold in the 2010 World Championships in Daegu over 5000m, the first of six in the championships.

At the London 2012 Olympics, he completed the long distance double in front of his home crowd and repeated the feat at Rio 2016.

Sir Mo has taken part in the London Marathon on three previous occasions, with a best finish of third in 2018 in what was then a British best of 2:06.21.

Later that year, Sir Mo won the 2018 Chicago Marathon in a European record of 2:05:11.