A moment of silence following the passing of Pope Francis has been announced by UEFA.
The mark of respect will be paid in all matches in the Champions League, UEFA Youth League, and Women's Champions League next week.
The head of the Catholic state died aged 88 on Monday, April 21.
A UEFA spokesperson said: "UEFA will hold a moment of silence in memory of His Holiness the Pope Francis before the kick-off of this week’s Youth League and Women’s Champions League semi-finals, as well as our men’s club competition semis taking place 29 April-1 May."
Following the sad passing of the Pope last Monday, UEFA president Aleksander Čeferin paid tribute to his life and legacy.
"Pope Francis was a beacon of hope for all humanity in these times of war and hardship," said Mr Čeferin. "A humanity that will now remain orphaned of that voice – tireless and powerful – that always rose in defence of the poor, the humble, and the vulnerable to call for respect, acceptance, and equality and to implore a peace that always seemed distant, yet ever more longed for by the heart of the world."
A Celtic statement released on Monday read: "Celtic Football Club would like to express its deepest condolences following the death of Pope Francis who has passed away this morning at the age of 88.
"Everyone at the club is saddened by this morning's news and we offer our sincere thoughts and prayers. Requiescat in pace."