Cian O'Connor will compete in the London 2012 Olympics, after the Olympic Council of Ireland confirmed his nomination to the Irish Olympic show jumping team.
O'Connor replaces Denis Lynch, who had been part of the Irish team, but had his inclusion withdrawn following the disqualification of his mount Lantinus during the Nations Cup event at Aachen last week.
A statement from OCI confirmed: "The Olympic Council of Ireland has approved Horse Sport Ireland's nomination of Cian O'Connor as the second Irish show jumping rider for the Olympic Games.
"The nomination was made by Horse Sport Ireland's show jumping Chef D'Equipe Robert Splaine for the combination of Cian O'Connor and his horse Blue Loyd.
"Ireland will now be represented by Billy Twomey and Cian O'Connor in the individual show jumping event in Greenwich, London, which commences on 5 August."
Lynch was disqualified from the Nations Cup after Lantinus was found to be suffering from sore feet and hypersensitive.
Kildare born Lynch released a statement shortly after his exclusion was confirmed and revealed that he is considering an appeal.
"I am devastated to relate that my nomination for the Olympic place in London has been withdrawn," the statement read.
"At this stage, we are considering an appeal. However, although we have the right to appeal the decision this morning, we have been informed no appeal process is in place. This again, we find very unusual."
O'Connor represented Ireland in the 2004 Olympic games, winning gold with his horse Waterford Crystal.
However Waterford Crystal was later found to have tested positive for prohibited, but not performance-enhancing, substances and O'Connor was stripped of his medal and banned from competition for three months.