A man who has been running the length of Africa in a mammoth challenge which has seen him take more than 19 million steps in 16 countries is set to cross the finish line in Tunisia on Sunday.Russ Cook, from Worthing, West Sussex, has faced visa complications, health scares and an armed robbery in his bid to become the first person to run the length of the continent.

A man who has been running the length of Africa in a mammoth challenge which has seen him take more than 19 million steps in 16 countries is set to cross the finish line in Tunisia on Sunday.Russ Cook, from Worthing, West Sussex, has faced visa complications, health scares and an armed robbery in his bid to become the first person to run the length of the continent.