A challenger emerges in Leinster, fan behaviour in Donnybrook and top prospects in Ulster

On the latest Left Wing schools rugby special, Will Slattery is joined by Tony Ward and Des Berry to look ahead to the cup semi-finals.The lads start in Leinster, where St Michael's take on Newbridge and Clongowes go up against Castleknock. St Michael's recorded an impressive quarter-final victory over Gonzaga, giant-killers of Blackrock, and the panel think that they will be too strong for the Kildare school in the final four. However, even though St Michael's remain the team to beat, everyone is very impressed with Clongowes after their opening two wins over Terenure and St Gerard's. It is also a great year for Castleknock, after they beat Belvedere to qualify for their first semi-final since 2002.In Munster, an all-Cork final between rivals PBC and CBC looks likely while there are a number of top prospects in Ulster, including Nathan Doak, son of former Ireland international Neil. The Connacht semi-finals are also up for discussion, as is the behaviour of past pupils at schools games in Donnybrook.See omnystudio.com/listener for privacy information.