Mo Farah is confident he can add to his medal haul in the marathon at the 2020 Tokyo Olympics.

Farah switched from the track to the road last year and set a new British record when he was third in the London Marathon in April.

The 35-year-old won 5,000 metres and 10,000m gold at both the London and Rio Olympics and has a podium finish in Japan in his sights.

"I am definitely going." said Farah, who will compete in the Chicago Marathon on Sunday.

"As long as my body can hold up, I am definitely going to Tokyo. I know from my training that I am definitely capable of getting a medal. I don't know what the colour is going to be, but I want to continue through 2020.

"A medal would definitely rank up there in terms of being a track runner and being able to do something in the marathon. In my mind, it’s something I’ve always thought I could do."

Farah also plans to race in the 2019 World Championships in Doha.