Shane Duffy promised Celtic fans there was more to come after his scoring debut in the 5-0 Scottish Premiership win over Ross County.
An early Odsonne Edouard penalty and a poacher's goal from Albian Ajeti, the Switzerland striker who was making his first Celtic start, had the visitors two goals up by the interval in Dingwall against a side who caused plenty of problems for the champions.
Debutant Duffy, the Republic of Ireland defender and life-long Celtic fan who signed on loan from Brighton, headed in from a Callum McGregor corner to ensure a comfortable last half-hour.
Fellow defender Kristoffer Ajer grabbed a fourth from close range before substitute Patryk Klimala fired in to keep the champions six points behind leaders Rangers with two games in hand.
Duffy, who played a club game for the first time since July, believes more matches can only help him as he looked forward to facing St Mirren in Paisley on Wednesday night.
He said: "Yeah, it's really still pre-season for me, that's my third game. I had two for Ireland and now this.
"I'll only get better. I know I play my best when there's a run of games.
"I'm delighted there's a lot of games, hopefully I keep my spot, I know the more games I play I'll get fitter and sharper on the ball."
Celtic boss Neil Lennon said: "Shane had the two games for Ireland which will have done him the world of good.
"He hadn't played that much football. Same with Ajeti, he needed a run out and today he's produced a great striker's goal.
"Shane, we all know what the club means to him, but to score on his debut was just great. I think after the goal he just looked peerless, just outstanding.
"That will give him a lot of confidence. He's getting used to us, our style of play and we're getting used to him. But it's been a good day's work for him."
Lennon was also pleased to see recent signing from Motherwell, David Turnbull, come on to make his debut on a day when there was a "lot of positives".
He said: "I was delighted to put him on. He's a good player and showed some nice touches.
"I thought second half we were superb. We looked a real threat, very powerful. I thought my goalkeeper had a fine game when called upon, he had some good saves.
"Overall I'm thrilled. We will get better. I think we can play better and we will as we go along."