Mo Farah has admitted that he has had to do research ahead of the 10,000m on Saturday.
The British athlete is being tipped as one of the favourites for the gold medal in London but he expects to be challenged by most of the field in London.
"I won't be surprised," Farah told The Guardian. "We have to do our homework and everything that we can. A lot of stuff happens in long distance.
"In the 100m where someone's the favourite it's Usain Bolt and there is no-one else. It's such a short distance that when he gets it right that's it. But in long distance a lot of stuff can happen and there is always someone new who we've never heard of. We definitely will research."
You can follow Farah's progress on Sports Mole's live text commentary of the Olympics.
