Liverpool assistant manager Pep Lijnders admits the players were affected when learning of the treatment of fans by Paris police before the Champions League final last season.
There was plenty of concern outside the ground as supporters struggled to get into the venue ahead of kick-off after French police opted to use pepper spray to try to control crowds.
The match was eventually delayed by 36 minutes, and Lijnders gave an insight into the anger that the players felt towards UEFA as news filtered through about what was going on.
He wrote in his book, 'Intensity': "It was deadly quiet. Some (players) were in tears, some were just with complete frustration and most of us with disillusion.
"UEFA, by the way, didn't warn us about the delays. It was only after we'd finished our warm-up we found out. Can you imagine that, before a Champions League final?
"But more important than this was the terrible treatment of our supporters outside, trying to get in to watch the game. A complete failure by the authorities, UEFA and the police.
"Treating football fans like it was a riot. We couldn't believe what we saw and heard when we later received the images, videos and stories from those caught up in it.
"That included family members of my own who told me they cried – firstly in fear when outside and later in sheer relief once they made it in.
"They told me the only ones who were calm were the Liverpool supporters. Sorry to say, UEFA has to do better."
