Wilson Kipsang says that the memory of Sammy Wanjiru s wonderful victory in the Beijing 2008 Olympic marathon will be in the minds of the Kenyan runners who take to the same Beijing streets for Saturday morning s marathon.

Three years after winning Olympic gold, Jessica Ennis-Hill is back at a major championship and is feeling good.

Seven years ago, Usain Bolt went to the 2008 Olympics in Beijing with a world record in the 100m, but no major senior title to his name.

After a low-key 2014, Shelly-Ann Fraser-Pryce has returned to her best this season as she hunts what would be an unprecedented third women s 100m world crown.

Jamaican superstar Usain Bolt has won the past three world titles at this distance, but this time he comes to Beijing from a different angle compared to Berlin, Daegu and Moscow.

Allyson Felix s decision to contest the 400m in Beijing has left the 200m wide open.