Sue Barker hosts coverage of the 31st London Marathon. The pace picks up in the elite races as the competitors make their way through the streets of the capital. Ethiopia's Tsegaye Kebede won the men's race 12 months ago, finishing over a minute clear of Kenya's Emmanuel Mutai. Kebede will be back in London once again, as will Liliya Shobukhova, who held off fellow Russian Inga Abitova to win the women's title. In the men's wheelchair race, home hopes will again rest with David Weir, who missed out on a fifth successive victory last time around after suffering a puncture.