■By WARREN MUGGLETON

LONDON Irish flanker and former Ireland international Sean O’Brien has joined National League 1 Rosslyn Park as a coach.
The 34-year-old is preparing for his third season in west London, having spent 11 years at Leinster and represented his country at two Rugby World Cups.
He will be balancing his playing career by coaching defence and breakdown for Park in Kieran Power’s setup.
He found the third-tier side thanks to a stroll past The Rock with a former Irish teammate.
He told TRP: “I was out with Connor Gilsenan, who used to play for Lo...