Michael Halford, trainer of Group 1 winner Casamento (Ire), is to depart from the Irish training ranks prior to the start of the Flat turf season. Formerly a sole licence holder, he has been training in partnership with Tracey Collins for the last two years. Halford, 62, who has been training for four decades and has saddled more than 1,000 winners, announced his impending retirement in a statement on Tuesday. He said, "Over the last 40 years I've been lucky enough to train for some of the world's leading owners...