On Tuesday, Celtic kicked off their season with a 3-1 Champions League qualifier first-leg over FK Sarajevo.
The Nhoys went down within the first half-hour but responded with goals from Mikey Johnston, Odsonne Edouard, and Scott Sinclair.
After the match, manager Neil Lennon singled out Celtic’s £9m record signing for his fine performance.
“Odsonne is a big-game player. You don’t have to whip him much to get a response from him,” Lennon said.
“But he had to change his boots at half-time because the pitch was very heavy.
“He was slipping a little bit but he looked a lot more assured in the second half. His finish showed great composure.
“Mikey Johnston also scored a great goal. It was a great hit and he did some special things in the game, so he can be delighted with his performance.
“Mikey’s goal was really important at that stage of the game because it settled us down and we had control after that.
“I am delighted by the result and performance. To score three goals away from home – no matter the level – at this stage of the season is very promising. And we could have won by more.”
Celtic can secure their place in the second qualifying round next Wednesday following Saturday’s friendly against Rennes.