England and Wasps lock Simon Shaw has been called onto the British & Irish Lions tour of New Zealand as a replacement for the injured Malcolm O'Kelly.
The Irishman was ruled out after suffering a recurrence of an old groin injury in training on Wednesday.
The Lions' medical team had hoped he would recover but an Auckland-based specialist confirmed on Thursday that the injury was worse than they had thought.
The Lions turned to Shaw, who was called into the England World Cup squad as a late replacement for Danny Grewcock, ahead of other possible candidates Brent Cockbain and Robert Sidoli of Wales.
Shaw said: ''I am absolutely delighted but feel for Mal and wish him well in his recovery.
''It is a great honour to be involved with the Lions, and to be honest it is all just sinking in but it will be fantastic to get out there and I am looking forward to the challenge that we will face in New Zealand.''
As head coach Stuart Lancaster polishes the axe he will soon wield over his World Cup training squad, Exeter Chiefs coach Rob Baxter has backed Jack Nowell, Henry Slade and Luke Cowan-Dickie to be given a stay of execution.
Italy Under-20s held off a late Samoa blitz to retain their place in the World Rugby U20 Championship on Saturday and head coach Alessandro Troncon believes the experience will have served as a valuable lesson for his young troops.