Celtic midfielder Kris Commons insists that a lot can be read in to last Sunday's cup game with Rangers.
The Hoops performer enjoyed a memorable week in his career after scoring his first goal in an Old Firm fixture before netting Scotland's third in the 3-0 win over Northern Ireland on Wednesday night.
Last weekend's 2-2 draw saw Celtic dominate a second successive Glaswegian derby at Ibrox and the Parkhead club look set to be favourites for the Co-operative Insurance Cup final.
But Commons believes arrogance must not be allowed to ruin the possibility of a treble for Celtic this season, with two more blockbuster battles with the Gers on the horizon.
"The games against Rangers will be tough games," he said.
"You can't go in there with an arrogance or be too confident because they are a dangerous side and they showed that at the weekend.
"They could have been 2-0 up after five minutes so it could be a completely different game and a completely different outlook from the press point of view.
"But the fact that we did so well in the second half with 10 men has put in people's minds the idea that we have the ascendancy.
"We are fully aware that we are capable of winning the treble but we have to approach every game in the manner that we do at the minute and that is give 110 percent, work hard and then hopefully our football will come through."
Commons is still coming to terms with the whirlwind start to his Celtic career since signing from Derby just before the Co-operative Insurance Cup semi-final against Aberdeen at Hampden last month where he scored a debut goal after six minutes.
He said: "I didn't have a great deal of time to settle in.
"I had my medical and before I knew it I was starting a game and it could not have gone any better because I scored my first goal.
"It's been fantastic. I can't praise the lads up any more than I have done.
"They have welcomed me in with open arms and settled me down and I feel as if I have been here for a long time.
"Obviously scoring last weekend in the Old Firm game and getting the goal for Scotland keeps that momentum going and it keeps me confident that I can keep scoring."