Olympic preparations intensify with athlete support measures while marathon and track stars prepare for major competitions ahead of London 2012

Usain Bolt aims to set new world records at the London 2012 Olympics, targeting 9.4 seconds in the 100m and 19 seconds in the 200m to "amaze" the world.

UK Athletics head coach Charles van Commenee expresses confidence that the British team can achieve the targeted eight medals at the London Olympics.

UK Athletics announces it will purchase tickets to guarantee that athletes' friends and families can attend and support their performances at the London Olympics.

Emmanuel Mutai is determined to defend his London Marathon title despite recently recovering from typhoid fever, preparing to race on Sunday.

Marathon world record holder Haile Gebrselassie abandons his Olympic dream and will not compete in the London 2012 marathon.

Guernsey's Lee Merrien competes in Sunday's London Marathon in peak form, seeking to qualify for the Olympics in the process.

Haile Gebrselassie decisively defeats Paula Radcliffe in a Vienna half marathon billed as "Emperor versus the Queen" matchup.

Olympic 400m hurdles gold contender Dai Greene confirms the start of his Diamond League season with a race in Rome on May 31.

British riders are mounting a strong challenge for titles in Moto2 and Moto3 classes, with racing outside the top MotoGP class expected to be highly competitive in 2012.