Celtic have been comprehensively beaten by Barcelona in their opening Champions League group game. They were hammered 7-nil in the Nou Camp.
Manager Brendan Rodgers says there were times in the second-half when they felt helpless to stop their opponents.
Arsenal came back from a goal down to claim a point in their opening Champions League group match. They finished 1-1 at Paris Saint-Germain.
Meanwhile Manchester City will try again to stage their opening Champions League game with Borussia Monchengladbach this evening.
The match was postponed before kick-off due to heavy rain in Manchester last night.