Keith Earls has been ruled out of the Ireland rugby squad for the summer tour to New Zealand and Australia. Earls has been suffering from a persistent groin injury and following his participation in the training camp in Limerick this week he has been ruled out of the tour. Connacht's Gavin Duffy, who was been named in the Ireland XV for the game against the Barbarians in Thomond Park on Friday night, will now travel with the squad to New Zealand in place of Earls. Earls joins Paul O'Connell, Rory Best and Kevin McLaughlin on the list of players who have been forced to withdraw from the tour. Further Test regulars Stephen Ferris, Denis Leamy and Luke Fitzgerald did not make it into the original 33-man squad named last month because of injury problems. Ireland squad for the 2010 Summer Tour in New Zealand and Australia from 4-26 June: Backs: Tommy Bowe, Gordon D'Arcy, Gavin Duffy, Shane Horgan, Rob Kearney, Fergus McFadden, Geordan Murphy, Brian O'Driscoll, Ronan O'Gara, Tomas O'Leary, Eoin Reddan, Jonathan Sexton, Peter Stringer, Andrew Trimble, Paddy Wallace Forwards: Tony Buckley, Tom Court, Sean Cronin, Jerry Flannery, John Fogarty, John Hayes, Cian Healy, Jamie Heaslip, Chris Henry, Marcus Horan, Shane Jennings, John Muldoon, Donncha O'Callaghan, Mick O'Driscoll, Ed O'Donoghue, Niall Ronan, Dan Tuohy, David Wallace http://www.rte.ie/sport/rugby/2010/0603/earlsk.html Balls, just balls.