As stated by interim boss Martin O'Neill, the Columbus Crew head coach is expected to be leading Celtic during Sunday's Premiership clash against Heart of Midlothian.
The head coach has been involved in detailed discussions with the Parkhead side for nearly seven days and currently looks set to finalize a deal.
Martin O'Neill has held the role of interim boss for more than a month since Brendan Rodgers resigned, notching six victories out of seven games, reducing Hearts' lead in the Scottish Premiership and guiding the Parkhead outfit to a Premier Sports Cup place in the final.
The 73-year-old, who previously managed the club between 2000 and 2005, had already indicated he expected the match at Hibernian – a 2-1 victory – was likely to be the last game of his second stint in charge.
However, O'Neill stated he is to lead Celtic for Wednesday's league encounter with Dundee before Wilfried Nancy takes over.
"He is the individual who will be taking over," O'Neill said to TalkSport. "I assumed it was over last weekend, however there's some paperwork yet to be sorted. The Dundee game will definitely be my final game."
"It has been like a dream," O'Neill continued. "It resembles a part in one's life where you think 'did all of that really happen?' Am I happy that I've done it? Without a doubt."
Should the Hoops beat Dundee while the Jambos defeat Killie in midweek, the incoming boss could guide his new club to the top of the Premiership with a victory in his opening fixture in charge.
"That's a good fixture for him against Hearts," O'Neill said. "A gentle introduction. It is going to be a difficult game naturally but good luck to him. At least he's getting a side with a bit of confidence."
The team's morale is a result of the positive run on the field in the last month or so, a period where he suffered just one defeat – a 3-1 defeat away to Midtjylland in the European competition.
Nevertheless, the former Republic of Ireland manager along with his squad then bounced back to achieve their first away win on the continent since way back in 2021 by defeating the Dutch club 3-1 recently.
"We lost by Midtjylland," O'Neill recalled. "That proved to be a hard fixture – a couple of weeks before they defeated Nottingham Forest, making it difficult. To go to De Kuip and secure a victory away from home was fantastic. We have given the team a chance, with three games left to try to qualify, but that Feyenoord game was a restoration of confidence."
Upon being asked for his thoughts on his time as caretaker, O'Neill says it has led to consideration about whether he desires to continue managing in the future.
"I honestly am unsure," he said. "I will have a wee think about things following Wednesday evening."
"It was not simple," he continued. "There was a fear of failure – which is an ever-present big concern. I once joked that I was capable of doing the job equally as badly as many other gaffers."
"I have learned a lot. I've got some great young coaches alongside me and it has served as a refresh for me in several respects, interacting with young people daily."
Regarding if he might remain at Celtic in a consultancy role, the former Leicester, Aston Villa and Republic of Ireland manager says that is completely the decision of Wilfried Nancy.
"That is really for Nancy to make," O'Neill stated. "He must be given full autonomy. If he wants my opinion on things, that's fine. If he doesn't, that is okay at all. It becomes his team the minute he enters the role."
TalkSport host Jim White ended the interview if O'Neill if he would be emotional once the full-time whistle blew in the Dundee game.
"Do you mean am I going to cry?" O'Neill responded. "Don't be ridiculous."
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