Swimming - Peaty breaks one record, Hosszu eyes another

By Alan Baldwin RIO DE JANEIRO (Reuters) - Britain's Adam Peaty smashed his own 100 metres breaststroke world record and Hungary's 'Iron Lady' Katinka Hosszu had another in her sights on an explosive opening day in the pool at the Rio Olympics. American golden girl Katie Ledecky meanwhile set herself up for the first medal of a likely hefty haul after swimming the final leg of the 4x100 freestyle relay. On a normal day Ledecky might have been the centre of attention, but Peaty seized the limelig