Double Olympic gold medallist Mo Farah posted this photograph on Twitter, while preparing to take part in the London Marathon. Farah will run half the 26.2 mile course.
ITV News' Royal Correspondent reflects on running the London Marathon in the shadow of one of Africa's most endangered species.
Tens of thousands of runners turned out for the London Marathon in a show of solidarity to the Boston bomb attack victims.
London Marathon runners will wear black ribbons and observe a 30-second silence to honour the victims of the Boston Marathon bombings.