Former Liverpool manager, Brendan Rodgers has been given the position of manager at Celtic.
The 43-year-old was sacked in October and has now signed a 12-month contract with the Scotland club.
Rodgers said: “I am absolutely delighted to be named Celtic manager. This is genuinely a huge honour for me. I have followed Celtic all my life and to be given this fantastic opportunity and to be part of such a truly great football club is a dream come true.
“I will give my new role everything I have and do all I can to bring our supporters exciting, entertaining and winning football.
“The club has been in magnificent shape in recent years and has collected silverware regularly during this time. My objective now, of course, is to continue this work, to keep us at the top and again make our mark in Europe.
“I know what a magnificent support Celtic enjoys and I can promise our fans one thing – that I will be doing everything I can to give you a team that you can be proud of and a team that delivers.
“I can’t wait to be in Paradise with our team and our fans as we all get to work.”
It was announced back in April that Deila would leave his role at the end of the season, despite guiding the club to a fifth successive Scottish Premiership crown.
Celtic chairman Ian Bankier added: “We are delighted to welcome Brendan to Celtic as the club’s new manager.
“As expected, there was huge interest in the position of Celtic manager but we believe we have chosen the outstanding candidate to take the club forward.
“Brendan is a man with a tremendous pedigree in football management, he is someone who knows all about Celtic and someone who has a real passion for Celtic. He is also a manager who we believe has the talent, the drive and the determination to bring continued success to the club.
“We are sure Brendan will receive a fantastic welcome from our supporters and we now look forward with real excitement towards next season as we tackle the many challenges ahead domestically and in Europe.”
The Glasgow club’s chief executive Peter Lawwell continued: “Brendan is a highly-sought after manager and we are pleased that we have been able to bring such a high calibre individual to Celtic.
“He has a huge and genuine affection for the Club. I know Brendan feels privileged to be named Celtic manager and I know he will give us everything he has to be successful at Celtic. Above all, he will bring huge experience, knowledge and ability to the role.
“We wanted to bring one of the biggest and best names to the Club to match our own aspirations and those of our supporters – we believe, in appointing Brendan, that we have done this.
“We have appointed a special manager and we are sure he can bring some special times to Celtic.”
After posts with Watford, Reading and Swansea City, Rodgers was appointed as manager at Liverpool in June 2012, and he almost delivered the club’s first league title since 1990 in 2013-14, only to just fall short of Manchester City.
However, Rodgers paid the price for Liverpool’s indifferent form at the start of 2015-16, and was replaced by Jurgen Klopp.