Clint Greenshields' early sin-binning cost Catalans dear as Bradford marched into the Carnegie Challenge Cup quarter-finals with a clinical 46-16 victory over last season's beaten finalists.

The Dragons full-back was sent to the bin in the fifth minute for holding down opposite number Michael Platt in Bradford's first meaningful attack, and the Bulls made their numerical advantage pay in spectacular fashion.

They ran in four tries during Greenshields' enforced absence as Semi Tadulala quickly broke the French side's resistance to claim the first of his three touchdowns before Sam Burgess and Dave Halley added further scores.

Tadulala then crossed again and with Paul Deacon converting all four tries, the Catalans were 24-0 down when Greenshields walked sheepishly back onto the field in the 15th minute.