He then moved on to Pontypool United where he was part of the Gwent U/16 championship winning team, before switching to tight head Prop, a position from where he won the first of his many Wales schoolboy caps.
Upon leaving Bassaleg School he took up a place at UWIC Cardiff, balancing his studies with Magners league rugby at just eighteen years of age.
He was an integral part of the Wales under 19 grand-slam winning side of 2006, and also represented his country at the 2006 Under 19 Rugby World Cup in Dubai where, along with Wales captain Bradley Davies, he was one of only two Welshmen to be selected in the organisers "World Cup – Team of the Tournament".
After suffering a succession of injuries and having had very little rugby since then, at the end of the 2008–09 season Corsi left the Dragons and signed for the Scarlets on 5 August 2009.
[1] He was forced to retire due to an injury acquired whilst touring Australia with the Welsh national team in 2012.