Interim manager of Celtic Neil Lennon was left frustrated on his return to his former side as his team were forced to a goalless draw by visiting Aberdeen.
The ex-Hoops skipper and boss returned after the sudden exit of former Liverpool manager Brendan Rodgers to Premier League side Leicester City but after victories against Hearts and SPL side Hibernian his return home in the league was destroyed by a well organised and dogged Aberdeen team.
It was a strange performance from the Parkhead team, who were made to drop valuable points at home for the very first time this campaign.
However, Celtic restored their 8-point lead over arch-rivals Rangers – who also drew on Friday night – at the summit of the log as they negotiate an eighth successive Premiership title and the domestic treble.
The dons will take massive confidence from their impressive display as they switch their focus to a Scottish Cup last-8 replay at Ibrox against rivals Rangers on Tuesday.
Lennon, considering a massive ovation by the supporters before the match, returned Jeremy Toljan to the defence for Mikael Lustig and Ewan Henderson was called upon for Odsonne Edouard while Dons forward James Wilson was called upon to replace injured Gary Mackay Steven in the starting line up.
The visitors were disciplined and organised, albeit spent most time in their own half of the pitch, and shot stopper Joe Lewis performed pretty well to tip over a goal-bound shot from Celtic star Kristoffer Ajer in the 30th minute.
Sixty seconds before interval, Celtic striker Ajer had the ball in the back of the net from a freekich by Henderson with a well placed header but was ruled out offside.
Celtic boss Lennon made changes in the interval, calling upon French forward Edouard and wide man Mikey Johnston for Henderson and former Chelsea forward Scott Sinclair while the guests replaced took off Wilson and brought in Dean Campbell. Celtic forward Oliver Burke was moved to the flank for Edouard to operate from the centre but it was the visitors who started to threaten, and successfully left Parkhead with a point.