LONDON Irish romped to a 70-14 victory over visiting Italian side Rovigo in their opening European Challenge Cup.

Topsy Ojo scored three times in the opening 39 minutes, as the Exiles built up a 28-0 lead by half-time.

Myles Dorrian and debutant Eoin Griffin also crossed before captain Luke Mahoney replied for the Italians.

Leo Halavatau restored normal service and Irish then ran in four more tries from Kieran Low, Dan Leo, Tom Guest and James Short, before Andrea de Marchi's last-minute consolation for Rovigo.

Exiles’ Dorrian added to his try with 25 points with his boot.

Irish’s next game in the competition, is a tough trip to French side Grenoble on Friday.