Derval O’Rourke has been forced to withdraw from the Ireland team for the upcoming World Indoor Championships in Qatar. The former champion will miss-out on the chance to regain her title after developing a hamstring injury. O’Rourke has been struggling with a calf problem during the early part of the year, but was still one of the Irish team’s main medal hopes ahead of the games, which take place next month. The Cork hurdler will now turn her attention towards the European Championships in Barcelona this summer. Ireland’s main medal hopes will now rest on David Gillick, who was awarded with the Crowne Plaza athlete of the month following his performance in Aviva Grand Prix when he equalled his own Irish Indoor Record of 45.52 seconds. The time currently ranks him as the fourth fastest in the World. Ireland team for World Indoor Championships: Men: David Gillick (400m), Brian Gregan (400m), David McCarthy (800m), 4x400m Relay team: David Gillick, Brian Gregan, David McCarthy, Nick Hogan, Brian Murphy, Billy Ryan, Tim Crowe; Women: Claire Brady (60m), Kelly McNeice (1500m), Rose-Anne Galligan (1500m), Deirdre Byrne (3000m), Hazel Murphy (3000m), Kelly Proper (Long Jump), Deirdre Ryan (High Jump).