For ten years Danny Wallace has been coping with the despair and acute frustration that comes after being diagnosed with an incurable illness. The former Southampton, Manchester United and England winger, stricken by multiple sclerosis, has days when he can hardly move or talk. As a player, Wallace was famous for his blistering speed. Now, walking with his sticks for just a few hundred yards will often exhaust him. And yet here is a man who intends to complete the gruelling London Marathon, however long it takes him. Danny Boy is by turns harrowing and inspirational, both a wonderfully life-enhancing story of courage in the face of adversity.