Steve Cram, Brendan Foster and Ian Thompson - husband of competitor Tanni Grey-Thompson - will be on hand all day to provide commentary and expert analysis.

BBC: Marathon coverage at the

Wales' 2008 Grand Slam coach has also been linked to the Waikato-based Chiefs role Ian Foster is to vacate ahead of the 2012 Super 15 season.

BBC: Warren Gatland has career 'options' post World Cup

The commentary team, consisting of Steve Cram, Brendan Foster, Paul Dickenson and Ian Thompson, will keep an eye on all the action.

BBC: SPORT | Athletics | The BBC at the London Marathon