Winning trophies has been a regular occurrence for Callum McGregor throughout his time at Celtic, but he knows that any success the team enjoys is always hard-fought for and never a foregone conclusion.

So the Celtic captain knows that the 1-0 League Cup defeat to Kilmarnock at Rugby Park today (Sunday) is a reminder of what can happen when the team doesn’t perform to the high levels that have brought so much success in the past.

Speaking to Celtic TV after the game, he said: “It wasn’t good enough. Celtic teams have to play with a certain level or personality and quality and we didn’t do that, but I think it’s a reminder for everyone that you don’t just have the God-given right to turn up and win trebles.

“It’s not easy. You come here and you have to fight and find a way to win the game, find the quality moment to win the game, and we didn’t do that. We didn’t have enough quality, so that’s disappointing.

“But we have to learn from it. It’s important that everyone sticks together. We find the solutions, we find the answers to the problems that lie on the pitch, and the only way we’re going to get better is if we stick together.

“Our record over so many years now has been very good but that’s because you turn up and you play. You don’t get any second chances.

“It’s hugely disappointing and everyone will feel it, so now we have to stick together.

“We have to learn from it and that’s the biggest thing. You can’t let it fester, you can’t let it snowball into two games or three or four.

“You have to find something within yourself as a player, to go again and put this right. There’s a lot of football to be played and we have to get it right, and that starts tomorrow.”

Callum McGregor: We need to stick together and find the solutions