Celtic manager Neil Lennon hailed Charlie Mulgrew's "wonder goal" in a win over Dunfermline that stretches their lead in the table to 20 points.
Mulgrew's 32nd-minute opener came in a week when the full-back has been called up to Craig Levein's Scotland squad for the first time.
"It is a wonder goal," Lennon told BBC Scotland. "There's all sorts of movement on it and it just sums up the way he's playing at the minute.
"I thought again he was faultless."
James Forrest scored Celtic's second after 75 minutes, but Dunfermline goalkeeper Chris Smith was to thank for keeping the score so close in Glasgow.
And Celtic now look like cruising to the title, with reigning champions Rangers in disarray and having been docked 10 points for going into administration last week.
"I am absolutely delighted," said Lennon after the win over the league's bottom side that equals the 2004 record of Martin O'Neill's side of 13 consecutive wins in all competitions.
"I am have very proud of them and its a fantastic record they've achieved tonight and they are a pretty special group of players for a team so young.
"Brought together without a huge amount of money, what they have achieved this season has been fantastic so far.
"We were wasteful in front of goal at times. I think the scoreline flattered Dunfermline.
"We had total control of the game, it is a clean sheet and a great win.
"That's 20 points now and that's all we wanted before the game."
Lennon had made four changes to freshen up his side and explained that his changes were designed to conserve energy.
"I think it's difficult, the amount of effort they put in on Sunday to match that again," he said. "That is the beauty of squads.
"I do think there will be changes in the summer.
"There are players coming out of contract and you have to speak to those players and players who are currently under contract who we might want to extend.
"So there might be a little change in the summer, but at the minute we're a very happy bunch and all the players tonight have contributed to the squad."