Pope Francis was presented with a Celtic top during the meeting at the Vatican
Celtic players and staff were granted an audience with the Pope after the club were knocked out of Europe.
But Pope Francis used the meeting as an opportunity to remind the team that winning was “not the most important aspect” of sport.
The pontiff was also presented with his very own signed strip by manager Brendan Rodgers.
Addressing the Celtic party, the Pope said: “It doesn’t matter if we have won or if we have not won, it doesn’t matter.
“Everyone struggles to win, but victory is not the goal, that can be defeat: victory is the entire process of playing together, playing as a team.
“Maintain the amateur spirit. That is the most beautiful thing about sport.”
The Pope added: “This was truly a charitable undertaking for the sake of the most needy of our brothers and sisters.
“Yet, how much the world of football has changed since then.
“In particular, the financial footprint of the ‘Beautiful Game’ has greatly increased, and at times can risk making football only attractive for reasons of monetary profit.”
The Champions League defeat against Lazio ended Celtic’s hopes of European football after Christmas as they now cannot finish third in Group E and drop down to the Europa League.
On X, formerly known as Twitter, the club said it was “honoured” to have been granted an audience with Pope Francis.
Among the players present was http://kolechai.com/ captain Callum McGregor, US international Cameron Carter-Vickers and defender Liam Scales.
A number of back room staff were also in attendance.