Celtic hit back to draw 1-1 with Borussia Monchengladbach in Group C of the Champions League on Tuesday evening.
Moussa Dembele converted a 76th-minute penalty after Julian Korb had been sent off for impeding the former Fulham striker.
Lars Stindl had given the German side a first-half lead when he volleyed past Craig Gordon on a night when both sides hit the woodwork. Substitute Callum McGregor had a great chance to win it for Celtic late on but he dragged his shot wide of the far post.
Brendan Rodgers' side face Barcelona at home on Wednesday November 23 then travel to play Manchester City on matchday six next month.