Ronny Deila has resigned as Celtic manager in the wake of their Scottish Cup semi-final defeat to Rangers.
The Norweigan had been under pressure for some time, despite Celtic's place at the top of the Premiership, where they lead Aberdeen by eight points.
Defeat in the Old Firm was the final straw, as Mark Warburton's side won 5-4 on penalties and dominated in the 90 minutes.
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Deila moves on
Deila told the club's official website:
"It is vital that the Club comes first and instead of me being the focus, hopefully now the team and the Club can be the focus as we enter this final important period of the season.
"There have been some disappointments and times when we have not achieved what we had hoped for and I'm realistic and honest enough to admit that, but I know that the players, myself and my backroom team have always given everything we had to bring success to our supporters."
Celtic fans have reacted with mixed feelings to the news that Deila will not be renewing his one-year-rolling contract.
Some Celtic fans have been quick to express sympathy with Deila, but for others, it was definitely time for a new man in charge:
Undoubtedly, Celtic have struggled to make much progress in his two-year spell in charge, but that has partly been down to Rangers' absence from the top flight, which has finally come to an end with their promotion.
40-year-old Deila also led the team to a league and cup double last season, but it looks as though it was not enough to keep him in Glasgow.
Former Parkhead boss Neil Lennon and ex-Manchester United and Everton manager David Moyes are the immediate favourites to replace him.
Who would you like to see in charge at Celtic? Have your say in the comments.