Blow for Ireland as Thomas Barr and Mark English fail to progress in Doha

European Championship medallists Thomas Barr and Mark English have been knocked out of their respective events at the World Athletics Championships in Doha.

Barr set a season's best of 49.02 seconds in finishing fourth in his semi-final of the men's 400m hurdles at the Khalifa Stadium - around a third-of-a-second off the two automatic qualifying places.