Having beaten Newcastle Flacons and Viadana at home, Brian McLaughlin's side did not disappoint away to the Guinness Premiership club.

Five minutes into the first half, recent Ireland cap Ian Whitten crossed the line for Ulster's first try of the game, with Ian Humphreys adding the extras for an early 7-0 lead.

Willie Walker closed the gap with a penalty for Worcester, and Ulster came under increased pressure as second row Ryan Caldwell spent time in the sin-bin.

But McLaughlin's charges kept the Warriors at bay and struck back at the start of the second half, with experienced scrum-half Isaac Boss slipping through for a 49th minute try.

Humphreys missed the conversion but managed to land a penalty on 64 minutes, extending the visitors' advantage to 15-3.

Humphreys kicked a second successful penalty and then in the closing minutes, number eight Robbie Diack stormed through the Worcester defence for a well-executed try - Ulster's third of an encouraging display - and Humphreys added the conversion for good measure.