Celtic continued their UEFA Youth League campaign with a 4-0 defeat to Atletico Madrid in Spain.
The visitors struggled to make any real impact on the fixture as their counterparts looked streaks ahead at times.
Atletico opened the scoring 16 minutes in when midfielder Rayane Belid took advantage of the ball breaking in the box to fire home.
The 18-year-old then scored his second 10 minutes later as he rounded off a well-worked move to guide the ball home.
Celtic then had their best spell in the game before half time as forward Lewis Dobbie struck the post.
After the break the home team continued to dominate possession and they were rewarded with another goal on 61 minutes when Adrian Nino made it 3-0.
Less than 180 seconds later the fixture was officially killed as contest as Belid completed his hat-trick after Atletico pounced on a mistake in midfield.
The result marks Celtic's fourth consecutive defeat in the competition this season.
Meanwhile, Matt O'Riley has been left out of Denmark's latest international squad.
The Celtic midfielder was included in Kasper Hjulmand's group for the first time against San Marino last month but did not feature as they scraped a 2-1 win away from home.
However, he will have to wait for his first cap for his country as he has not been selected for the fixtures against Slovenia and Northern Ireland.
The 22-year-old has been in excellent form for the Parkhead side so far this season, scoring six goals and providing five assists across 15 appearances.