Despite Celtic suffering another European victory, manager Martin O'Neill believes the morale of the dressing room has not suffered any "real serious damage".

The 2-1 loss to Celta Vigo on Thursday night made it three Europa League defeats out of three for the Scottish champions and left them 35th out of 36 teams in the league table.

A week on from their 7-1 demolition of Hearts, Celtic resume their Premiership quest against Hibernian at Easter Road.

"We have to recover and we'll try and get ourselves physically right for the game, which is the most important thing," O'Neill said.

"Psychologically, I don't think Thursday will do us real serious damage. One never knows.

"But it's a tough schedule for us, the last week has been tough travelling to Portugal [where they lost 4-1 to Benfica].

"But listen, no excuses. We are what we are and we have to try and win so Sunday becomes a big game for us.

"We have to try and fight back and try and win on Sunday if we can."

Meanwhile, defender Liam Scales is looking to discard "the pain" of the Celta defeat and bounce back against Hibs.

"You can't be holding on to kind of pain from games for too long," he said. "We know that, we've been playing long enough.

"You need to bounce back and be ready for the next game and I felt like that was the case last weekend [after Benfica] and hopefully we can do the exact same this weekend.

"We want to stay top of the league."