Ronny Deila will keep Scottish Premiership title celebrations on hold despite his Celtic side despatching nearest challengers Aberdeen 4-0 at Parkhead to go six points clear of the Dons with a game in hand.
Jason Denayer headed the home side into the lead against the run of play from a corner in the 37th minute before the visitors fell apart after the break.
Leigh Griffiths made it 2-0 with a penalty in the 63rd minute and midfielders Gary Mackay-Steven and Stefan Johansen added further goals for Celtic's third win of the season over the second-placed Pittodrie men.
Celtic, who have won all 10 domestic matches this year, can stretch their lead at the top of the table further against St Johnstone on Wednesday night.
However, Deila refused to write off Derek McInnes's side, who lost their first league game in 14, as challengers.
"I don't take anything for granted," he said. "I have been in football for many years.
"At my former club we were three times leading in the summer by seven points and it took three years to win the league.
"So I know how quick it can turn around if you start to lose focus on the right things.
"If we do everything we have done so far the rest of the season it is going to be very hard for them.
"We have the possibility to get nine (points ahead) and there is goal difference as well, that is getting better, so we really have a good position in the league."
Deila admitted his side were "all over the place" before a calming half-time pep talk and he put first-half lethargy down to the late return to Glasgow from Thursday night's Europa League exit to Inter Milan in the San Siro.
"In the second half we were disciplined, organised, balanced, moved the ball quicker and they couldn't cope with the runs we had behind them," said the Norwegian.
"I am so happy for the performance and the result and I am proud of the boys.
"It is so hard to play so many games like we are doing now.
"We didn't arrive in Glasgow until 3am on Friday morning, that is a tough one when you are going to play two days later," added Deila.
Meanwhile, Rangers chairman David Somers is to step down just days before his future in the position is due to be voted on by shareholders.
An extraordinary general meeting is being held at Ibrox on Friday at which the future of the current board will be decided.
It is unclear if chief executive Derek Llambias and finance director Barry Leach will also go before Friday.
An announcement is expected today regarding Somers' position.
The 66-year-old has been chairman since October last year but has faced numerous calls to step down by fans who have been protesting for change.