World Championship athletics: Perri Shakes-Drayton into hurdles final
Perri Shakes-Drayton sent out a big statement as she powered into the 400m hurdles final at the World Championships.
Last Updated: 13/08/13 6:12pm
But there was major disappointment in the men's event where defending champion Dai Greene bowed out in the semi-finals.
Shakes-Drayton produced a strong finish down the home straight to win her semi-final in 53.92 seconds, running down a fading Lashinda Demus, the defending champion from the United States, over the last couple of barriers.
Scotland's Eilidh Child ensured there would be two Britons in the medal race as she finished third in the first heat, flying through the first 250m before coming home in third place in 54.32secs.
Meghan Beesley ran a huge personal best of 54.97s, but sixth place was not good enough to progress.
Shakes-Drayton is set for a titanic battle with Czech gold medal favourite Zuzanna Hejnova in Thursday's final, with the world number one the fastest qualifier in 53.52.
Greene's exit was not a huge surprise - the Welshman was plagued by illness and injury in the build up to Moscow.
He finished fifth in 49.25 and European champion Rhys Williams also went out, finishing fourth in his semi in 49.29.
And so too did Sebastian Rodger, who finished sixth in 49.32, leaving no British representation in the men's final.
But there was better news for 1500m runner Hannah England, who made it through to the final of the women's event after placing fifth in her semi.