Reds have to hang on after scaling heights
They should have led by more than 16-3 at half-time, but by the final whistle they were desperately relieved to have escaped with a three-point victory.
For half the proceedings, Felix Jones, Simon Zebo, Ian Keatley and Johne Murphy were at their scintillating best on a glorious night for open rugby and behind a forward pack that destroyed the Welsh in the set scrums and in the loose play exchanges, all culminating in a series of rip-roaring attacks that pushed them 16-3 ahead at the break.