Usain Bolt is plotting a career as a professional footballer once he has fulfilled his ambitions in athletics.

The 24-year-old Jamaican is hoping to clock 9.4secs in the 100m after setting the world record of 9.58secs in Berlin last year.

Once he has achieved what he views as an unassailable time, he will then turn his attention to football.

"I have four more good years me if I train hard," he told BBC Radio 5 live's Sportsweek programme.

"When I finish I'd like to play football for two years. I always watch those guys and I think I could be a professional footballer.

"I'll try that. Maybe I could get into a good side or even an average side.

"I'm definitely a good player - a defensive or attacking midfielder. Somewhere around there.

"First I'm hoping I get be the one to get to 9.4 seconds because that's where I think the record will probably never be beaten."

Bolt believes athletics is winning the battle against drug cheats and gains greater credibility with the passing of time.

"For me it's all about time. If someone stops cheating then over time people will start to trust that person again," he said.

"It's like a relationship - if you cheat on someone they will trust you again over a period of time.

"In track and field they're doing a really good job of catching the cheats so it's hard to cheat.

"The sport is getting there. We have been through a couple of years where there has been a little scandal but nothing major.

"It will get cleaner and will be back to a sport with no problem. We need nothing but time."