Celtic suffered their worst ever defeat in Europe on Tuesday night, going down 7-0 to Barcelona.
There was a meanness to Barcelona's performance. It was unrelenting, pressure was never released from the Celtic throat.
On ITV's Champions League highlights show, Roy Keane said one thing Celtic need to change is their mindset about European football.
On one hand we're being told that Celtic are a great club with great traditions, great history - then they lose 7-0 to Barcelona and people say 'these things happen, it's acceptable'.
We spoke about the game there last weekend. They played against Rangers - one of the worst Rangers teams I've seen in a long time - who finished with 10 men for the last 10 or 15 minutes. I think the idea that they were tired - no [shakes head].
Celtic endured scares during qualifying for the group stages of the Champions League. Their opening game to Gibraltarian minnows Lincoln Red Imps was lost 1-0. After demolishing Hapoel Be'er Sheva 5-2 in the first leg of the playoff round, they very nearly went out on away goals.
Celtic's celebration of reaching the group stage irked Keane.
But even in qualifying, they were poor in the qualifying games. They scraped through. They didn't win any of their away games, I think.
The whole mindset has to change. Don’t accept, particularly away from home, being the whipping boys of Europe.
It’s Celtic, a huge club - they need to do a lot better.
When they qualified for the group the celebrations for me were way over the top. I actually thought they’d won the competition. People were hugging each other, the manager, the coaches the players.
'It's not Altrincham, it's Celtic' exclaimed Keane when addressing the quality of player at the club and what is expected of them.
Playfully, Lee Dixon placed a calming hand on Keane's shoulder as he again expressed his exasperation.
I'm on about the qualifying games where they were scraping through; then celebrating the bloody thing - excuse my language.
You can watch Keane's reaction to Celtic's loss below.
