49 - Reggie Corrigan - Leinster, Ireland (47 caps). Honours: Celtic League 2001.
Corrigan is one of those who had made the breakthrough during the difficult days of the 1990s and had a period out of the international picture before becoming the cornerstone of the Irish scrum around the 2003 World Cup.
A consistent performer who was rock solid at the set-piece, he captained Leinster to the Celtic League triumph in 2001 and retired in 2006.
48 - Shane Byrne - Leinster, Saracens, Ireland (41 caps). Honours: Celtic League 2001, Lions 2005 (4 Tests).
A late bloomer, Byrne had to bide his time until Keith Wood retired, but once he got his chance the Blackrock hooker made the most of it.