marath..on/off?

if sarah was a horse she'd be put down!
poor sarah has been training for the london marathon since last summer. she coped with shin splints, the appalling weather, with the flu and numerous colds and with just 7 days to go before the big day, she's done something to her knee. to say she's upset would be putting it mildly.
but, as they say, best foot forward!