Bolt returns to action in 400m

The trouble for Usain Bolt in 2011 was getting out of his starting blocks too quickly – prompting his disqualification from the World Championship 100 metres final in Daegu, South Korea. In one sense at least, the world's fastest man does not intend to play a waiting game in 2012. His first race of London Olympic year will come next month.

The Jamaican, who holds the 100m and 200m world records and Olympic titles, plans to blow off the cobwebs with at least two 400m races on home soil. Bolt is toying with the idea of running in the Jamaican 4x400m relay team in London, as well as the 100m, 200m and 4x100m. "I always run quarters before the season and I will be starting in February," he said.