Celtic manager Ronny Deila conceded he may have made too many changes ahead of his side's game against Inverness.
The Norwegian made 10 switches from the midweek draw at Maribor in the Champions League play-off, with only captain Charlie Mulgrew retaining his place ahead of the return leg at Parkhead.
Inverness triumphed 1-0 at the Tulloch Caledonian Stadium thanks to Republic of Ireland Under-19 international Eoghan O'Connell's 65th-minute own goal.
Deila admitted the number of changes may have been too great, but felt the sacrifice would prove worthwhile if they beat Maribor on Tuesday.
"I learned a lot about the players that came in but maybe there were too many new players," he said.
"There were probably too many at the same time and we didn't get the performance we wanted. We now have to focus on Tuesday.
"I have to congratulate Inverness because they played well but we had the better chances in the first half.
"You will see on Tuesday if I regret making too many changes, but of course it will be worth it if we win."
The Bhoys had no new injuries coming out of the game and starting goalkeeper Craig Gordon was merely rested ahead of the Champions League encounter. Kris Commons is also expected to be involved.