Harlequins hoping to keep senior cup challenge on track

With heavy-hitters UCD and Loreto already having fallen by the wayside, all eight sides contesting the quarter-finals will harbour ambitions of going all the way.
Pegasus are still a major force in Ulster, lying four points off the summit with two games in hand, but Quins can call on an epic 2010 semi-final victory over the northerners to inspire some confidence.