Johnson suggest Bolt switch to 400m

Sprint legend Michael Johnson believes Usain Bolt should consider moving up to 400 metres after an impressive relay display over a week ago at a local meet in Jamaica.



Bolt clocked a 43.58 second split in a 4 x 400 relay at the annual Gibson Relays 10 days ago at the National Stadium.



American Johnson\'s world record from a standing start is 43.18 seconds and his best split time in a relay from a rolling start was 42.94.



Johnson says Bolt has the ability to be a world record holder in the 400 metres.



Bolt set world records for the 100 metres and 200 metres last year and was part of the Jamaica 4 x 100-metre relay team that set a world record and won Olympic gold in Beijing in 2008.



However, no athlete has ever held the world record in the 100, 200 and 400 metres.



Last month, running the anchor leg for the Racers Lions team at the Gibson Relays, Bolt collected the baton in fourth position, 20 metres behind the leader, and managed to close the gap to just 0.44 seconds at the finish line.



Johnson recently visited Bolt in Jamaica while filming for a forthcoming BBC Inside Sport documentary.



Bolt regularly runs the 400 metres as part of his stamina work early each season.