Celtic manager Brendan Rodgers hailed a “monumental” victory as his team ran out 3-0 winners away to Livingston with 10 men.
A Reo Hatate penalty had the visitors ahead before Joe Hart was shown the first red card of his career for fouling Mo Sangare.
The setback, though, did not affect Celtic and second-half goals from Matt O’Riley and Daizen Maeda sealed a professional win.
Rodgers said: “It was a monumental win in terms of getting back in after playing with nine men during the week [in the Champions League against Feyenoord].
“Livingston is a notoriously hard place to come anyway, never mind with 10 men, so to play with that mentality was very good.
“Attitude and energy are what you need and that is what we had. You don’t get points here for style. You have to dig in and be resilient.
“I thought we played well on a difficult surface and stylistically I thought we played better on the surface with 10 men.
“We always have a plan for that in terms of how we work, how we keep the calmness. I thought the players were outstanding.
“We added to that with two really good goals in the second half. As I said to the guys, when you have Daizen Maeda, it is not like playing with 10 men.
“He does the running of two men, he is absolutely incredible and I was so happy for him that he got his goal. He was so good on the day for us.”
Livingston manager David Martindale felt his team had played better when Celtic had their full complement on the pitch and expressed his frustration at losing a second goal so early into the second half.
He said: “In all honesty, we were probably better 11 v 11. Then the second goal comes after only two minutes in the second half.
“And then momentum goes back in Celtic’s favour. In the second half after that second goal, I think Celtic were worth their money. I thought they worked a lot harder than us all over the park.
“Their application, their endeavour and their desire were probably a lot better than what we showed against 10 men. Sitting here, I’m hugely frustrated at the result, but I don’t think we deserved more from the game in all honesty.”