10 Dec, 12:23
Ireland's John Lacey will referee his first ever RBS 6 Nations match in February, while Alain Rolland is also included in the Elite Panel in what is his last season.
Almost inevitably, Cregan then tagged on two more penalties, both in the second period of extra time and the second of those from the half way line to send Young Munster home dejected. It was the conclusion of a masterclass from Cregan who scored all his side's points, six penalties and a try.
Shannon opened with a Cregan penalty and try to race into an eight point lead but three Mike Lynch penalties left Munster in front at the break. They extended their lead - after Cregan had landed his second penalty - when Mike Lynch scored a Munsters try and that seemed a decisive score until Cregan struck late to force the extra time.