SIR Mo Farah has revealed he has gone all out in his training in an attempt to win Sunday's London Marathon.
The four-time Olympic champion is competing in this weekend's 26.2-mile race having retired from track running last year.
Farah, 35, ran the event in 2014 and finished eighth, but admits he has gone "hard at it" in his preparations this time around.
"I'm here to do a job on Sunday," he said at a press conference reported on the London Marathon's Twitter page.
"I've definitely prepared differently this year compared to 2014. When I ran the Marathon in 2014 I had to think about saving energy for the track but this year I've gone hard at it."
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