Celtic were beaten 3-1 away at Austrian outfit Red Bull Salzburg on Thursday and faced off against strong opponents in the Europa League group stages.
Odsonne Edouard had given the Bhoys a surprise early lead in the second minute, but the hosts responded with three unanswered second-half goals to pick up three points.
The result leaves it set up Brendan Rodgers’ team to battle over two games with German team RB Leipzig for qualification from their group.
Celtic can reflect on a tricky test on Thursday and a number of players showed great heart, but there were also some that struggled to make their mark on the game.
Leigh Griffiths was a no-show in the contest and unfortunately for him was unable to provide a serious attacking threat.
The 28-year-old centre-forward was feeding off scraps for the most part and was eventually substituted off for Scott Sinclair on the hour mark.
He is a 5ft 9 that has netted five times in 15 games across all competitions this season and showed signs of fatigue against Salzburg.
But there is no need to worry about the Scotland international, as it was him who scored the decisive goal against Rosenborg in the first group stage match of the Europa League.
Griffiths is still on course for a 20-goal season if he stays fit and is a poacher that is capable of popping up at key moments.