London Marathon 2014: Professor Greg Whyte's marathon top tips
- Date: Sunday, 13 April
Coverage: Live on BBC One, Red Button, online, mobiles and tablets from 08:30-14:30 BST, plus live text and BBC Radio 5 live commentary. Highlights on BBC Two from 17:30 BST
Fitness expert Professor Greg Whyte offers up some essential advice on running a successful marathon.
He offers some light-hearted advice on warming up, going to the toilet and how much to eat and drink along the way.
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