Neil Lennon resigned as manager of Scottish club Celtic on Wednesday with the team a distant second behind Glasgow rival Rangers.
Celtic was in pursuit of a 10th consecutive league title but is 18 points behind Rangers in a turbulent season punctuated by a 1-0 loss to struggling Ross County on Sunday.
"We have experienced a difficult season due to so many factors and, of course, it is very frustrating and disappointing that we have not been able to hit the same heights as we did previously," Lennon said in a statement. “I have worked as hard as ever to try and turn things around, but unfortunately we have not managed to get the kind of run going that we have needed.”
Lennon began his second stint as Celtic manager in February 2019 after Brendan Rodgers left to take over at Leicester and led the team to two league titles.
Assistant coach John Kennedy was named to take over on an interim basis.
“I would like to pay tribute to Neil for all he has done for the club in his second spell, delivering our eighth and ninth successive league titles, the quadruple treble and winning the last five available domestic trophies,” Celtic chief executive Peter Lawwell said. “Neil has always been and will always be a true Celtic man and someone I will always hold in the highest regard.”
Lawwell said it is a 'sad day' to see Lennon leave.
“Neil is a man of quality and decency," he said, 'he is someone who will always be part of the fabric of Celtic and someone who will always be welcomed at Celtic Park'.
