Irish pentathlete Arthur Lanigan-O'Keefe has confirmed that he will miss this summer's Tokyo Olympics after failing to recover from an injury in time for the games.
Lanigan-O'Keefe represented Ireland at Rio 2016 and at London 2012, but will miss out on Tokyo thanks to a hip injury.
That hip injury forced the 29-year-old to withdraw from the UIPM 2021 Pentathlon World Cup final in Hungary last month and has put an end to his hopes of competing at three consecutive Olympics, having secured qualification for Tokyo.
Lanigan-O'Keefe's place at the games will now go to Mexico's Alvaro Sandoval Aguilar.
The Kilkenny athlete confirmed the news on instagram, where he wrote: "My injury to my hip is too much to overcome and I have decided that the honorable thing to do would be to pass my place onto another athlete who was fit to compete at the highest level.
"This is not a decision I have taken lightly and it's been one of the most painful things for me to do having fought soo hard to get here. I made my intentions for Tokyo very clear and that was to go competing for a medal.
"This is no longer possible with my injury, so to travel and not represent myself or my countryt o the fullest would be dishonorable and in my opinion against the core values of Olympism which are "excellence, friendship and respect" and I feel in this instance I need to honor this.
"@alvaro_sandoval_aguilar you are the better man for the job. You now not only represent Mexico but also Ireland and we will be cheering for you, best of luck my friend!"
O'Keefe's withdrawal means his fiancée Natalya Coyle will be Ireland's only modern pentathlete in Tokyo.
Meath native Coyle will be competing in her third Olympic games, having finished ninth at London 2012 and sixth at Rio 2016.
She travels in good form, having finished fifth in the UIPM Pentathlon World Cup Final in Hungary in recent weeks.
Galway's Sive Brassil remains on standby for the Games having finished 40th in the world rankings.