Padraig Harrington took Britain and Ireland over the winning line by making a brilliant closing birdie to halve with Jose Maria Olazabal.
But there then followed a 15-minute private talk between the two, which turned out to be over an incident way back on the third green.
Harrington thought Olazabal should have waited for a referee over whether he could repair a couple of marks on the line of his putt, but Olazabal had already started the repairs and when Harrington spoke to him the Spanish star conceded the hole.
Harrington later said: “It was 15 very awkward holes after that – big-time. I was not trying to question his integrity, but that’s what he thought. I certainly won’t be celebrating tonight.”