Leinster coach Leo Cullen has queried the level of outside influence prop Roman Salanoa was under when he opted to shift his allegiances to Munster this summer, admitting the decision left his side "compromised".
Cullen was addressing the media ahead of Friday's Guinness Pro14 semi-final against Munster when he claimed that Salanoa had verbally agreed to commit his future to the province.
The alleged U-turn was always likely to cause the Leinster boss a major headache as Jack Aungier had been allowed to join Connacht on the understanding that Salanoa would be extending his stay in the capital.
The 22-year-old from Hawaii made his debut for Leinster in a 54-42 win over Ulster in the Pro14 last December, making three competitive starts in total.
Leinster have now moved to bolster their front row, securing the services of Ciaran Parker in a loan deal from Jersey.
However, Andrew Porter will be absent from the fold for a considerable period in the months ahead due to international duty, while Tadhg Furlong continues to struggle with a back injury.
"The Roman obviously one was a little bit frustrating, when he left, because I was under the impression –because he told me – that he was going to stay," Cullen said.
"I don't know what sort of pressure he was under in the background, you'll have to ask Roman that one, but he definitely left us compromised"
"So, there was another player left as well, Vakh Abdaladze is injured as well, so because there are so many international games coming up we knew we needed to have some extra coverage for this period.
"Ciaran is Irish qualified, and the big thing is – the Championship in England – there's a good bit of uncertainty as to when that start date is going to be.
"We're very appreciative of Jersey for allowing his release for this loan period that we have agreed.
"I don't know what the selection for Ireland is going to be, but there are six internationals we think in seven weeks.
"Assuming that's Tadhg and Andrew Porter gone, it just leaves us a bit skinny, with just Michael Bent and Tom Clarkson here. Tom is still an academy player.
"So I thought we needed a bit of extra cover. We'd been looking around probably for four months maybe, maybe even longer, we're very appreciative for Jersey agreeing to the arrangement."
Expanding on the situation he found himself in with Salanoa, Cullen added: "He told me he was staying. I told him I had to deal with another player.
"So, basically, that's how it unfolded. I took him at his word, but he hadn't actually signed the contract.
"I don't know what sort of pressure he was under in the background, you'll have to ask Roman that one, but he definitely left us compromised."
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Follow the Pro14 semi-final between Leinster and Munster (7.35pm Friday) with our live blog on RTÉ Sport Online and the RTÉ News app or listen to live commentary on RTÉ Radio 1.