Duran is a fantastic find - Allan

[Getty Images]Former Celtic midfielder Scott Allan has praised the way Martin O'Neill's side responded to their ignominious Champions League exit by beating Falkirk in the Scottish Premiership.And Allan believes Celtic have unearthed a superstar in forward Camilo Duran, who got both goals in the 2-1 win over the Bairns.Austrian champions LASK fought back from four goals down on aggregate as Celtic collapsed on Tuesday - but the chastened Premiership champions saw off Falkirk as they returned to