Celtic manager Neil Lennon singled out the contribution of Victor Wanyama in the 1-0 win over Hearts.
Wanyama's 72nd-minute strike was the difference between the sides as Lennon's men moved within four points of Rangers at the top of the table.
"It was a brilliant goal," said Lennon. "He hasn't been showing that.
"His shooting is normally as bad as mine, but I'm delighted. It was a great finish and I thought we thoroughly deserved the win."
Celtic survived a last-minute penalty scare in the win, but time was running out before Wanyama's superb solo strike from the edge of the D.
Goalkeeper Fraser Forster then pushed away an Eggert Jonsson penalty with 60 seconds remaining to secure the three points.
Lennon felt his side controlled the game throughout and, while Hearts managed to frustate his players for most of the match, the win came in the end.
"We were the dominant tream, and it's always a worry at 1-0, but I thought we dominated the game for long periods," said Lennon.
"Hearts made it difficult - they packed the midfield and I thought Marius Zaliuskas had a great game in the midfield.
"They fought for everything and credit to them for what they're going through.
"They showed admirable fortitude against us, but I thought we played well.
"It wasn't vintage Celtic, but it was gutsy and there was some good performances."
Lennon was also puzzled as to how referee Calum Murray arrived by his decision to award a late penalty for Hearts, as television replays were inconclusive over the incident between Wanyama and Maruis Zaliukas that determined the spot-kick.
"The ref is saying it's a handball, but I've seen it again," said Lennon.
"Wanyama went up for a header with his arms, but he hasn't touched it with his hands - Zaliuskas headed it, so I don't know how Calum had a good view of it because he couldn't see it from that angle.
"If you look where the ball has ended up, it's impossible for him to hit it with his hand and direct it that way.
"But Fraser was due a save and it was a magnificent save.
"We were patient and we got a wonder goal and the three points, which I felt was thoroughly deserved."