Arne Engels has agreed terms on a five-year deal worth £22m to join West Ham, and Martin O'Neill has made clear Celtic could not really stop the move once it became available. It is a significant departure for the Scottish champions, coming just days before their Champions League play-off first leg against LASK.
The transfer also adds to a busy week at Celtic. Haissem Hassan and Mika Baur have already arrived, Chelsea left-back Landon Emenalo has been given a tour of the Lennoxtown training centre, and O'Neill has indicated that more signings are still expected before the window closes.
O'Neill, who said he is fully back at work after a medical procedure last week, was candid about the timing. West Ham wanted Engels available for the opening day of the season, and the Celtic boss admitted the player had been honest and stoic throughout the process.
Why Celtic let the move happen
O'Neill's key point was simple: this was not a case of a player agitating for a move or forcing the issue. He said Engels never moaned when Nottingham Forest made a late offer in January, and that the midfielder had again handled the situation in a calm, professional way.
“Naturally disappointed, really, that he's leaving the football club, he's done very well for us,” O'Neill said. “And it's hard to dissuade him of that. If it hadn't come up, I think he'd have been happy. Even though the offer came in very late from Nottingham Forest in January, he never moaned about it at all.”
That is the key to understanding Celtic's position. They would have preferred to keep him, especially with a major European tie looming, but the scale of the opportunity and the player's stance made the decision difficult to resist.
O'Neill added: “So it's an opportunity for him and it's really hard for him to turn it down.”
Timing is the real concern
The immediate issue for Celtic is not only losing Engels, but losing him before a Champions League play-off first leg and before the transfer deadline. O'Neill acknowledged there was a practical limit to how long the club could hold the situation together.
“Ideally, I'd love him to have stayed and maybe completed after the two games,” he said. “It probably wasn't going to happen.”
That matters because Celtic have already seen what can happen when a player is involved during a period of uncertainty. O'Neill referred to Alistair Johnston going off at half-time in Sunday's 5-1 win at Kilmarnock, noting that there is always a risk when a player is carrying an issue and the club is juggling availability and value at the same time.
“You've got a concern, I suppose, with the fact that Alistair played for us when there was an offer on the table, hurt himself, maybe things like that there may disappear,” O'Neill said. “I suppose Arne was probably worried the same sort of thing might happen. From a playing viewpoint, I probably can understand that.”
Celtic still have business to do
The loss of Engels does not mean Celtic's window is finished. O'Neill made clear that the squad will continue to be shaped before the deadline, and the club are already looking at ways to cover the departure.
He pointed to Kieran Tierney as a player who can help in that area, but said there is still a need to strengthen. “Obviously we need that position covered,” he said. “Kieran did exceptionally well last season, having been plagued with injuries at Arsenal. He came roaring back, which was great.”
He also spoke positively about the young player Celtic are hoping to bring in, saying: “I think he's a really fine young player. He's got a bit of an injury at the moment. We're hoping that that will clear up shortly. And if it does, and I think it will, I'd love to have him.”
For Celtic, then, the story is not just the loss of a £22m midfielder. It is the wider test of whether they can absorb it quickly enough, stay strong for next Wednesday's Champions League assignment against LASK, and keep the squad moving in the right direction before the window closes.
