Wings Sitiveni Sivivatu and Julien Malzieu both scored try hat-tricks, with full back Lee Byrne crossing for a brace of tries and Alexandre Lapandry, Brock James, Elvis Vermeulen all scored against the Italians.

Aironi, who are in only their second season of European rugby and haven't won a game in the Pool this season, suffered their heaviest defeat in the tournament at the hands of the Top 14 outfit.

Clermont raced to a 47-0 lead at half-time and simply overwhelmed their Italian hosts with their pace and power in a devastating display of what the French side are capable on their day.