Michael Watson picks up his race number at the start of his challenge - he is raising money for the Brain and Spine Foundation

Watson smiles at the start of the race on Sunday, he intends to complete the race walking an average of 4 miles a day

Watson completes two miles every morning and afternoon and celebrates reaching the nine-mile mark

Watson crosses Tower Bridge on Tuesday as he reaches the halfway point in his 26-mile challenge

Chris Eubank, who was Watson's opponent when he sustained his brain injury in 1991, joins the brave boxer for the final leg

Watson crosses the finish line of the London Marathon - six days and two hours after most of his fellow competitors

Michael is greeted on the line by his mum, Joan, who presents him with his finishers medal