Justin Gatlin and Mike Rodgers have warned their Jamaican rivals Usain Bolt and Yohan Blake that they intend to win a sprinting "dogfight" after securing a one-two in the 100m at the Diamond League opener in Doha.
Jessica Ennis's sharp start to the Olympic summer continued here at the Aviva trials on Saturday in Birmingham. She easily won both the events she was competing in, the high jump and the 100m hurdles. She will be back at the track on Sunday, trying to add a third title in the long jump too.
Christine Ohuruogu was once the face of London 2012, but these days the 400m runner is happier keeping out of the limelight.