Anfield hero stormed off without dinner.
Liverpool goalkeeper has lifted the lid over a furious row he had with manager Rafa Benitez over his drinking habits.
The 29-year-old has released an autobiography and revealed his argument after a Champions League loss to Besiktas in 2007.
The Spain international felt untrusted by the boss and was so angry he refused to eat with the rest of the team after the defeat.
“The biggest argument I had with Rafa was about a beer,” Reina said. “We had lost 2-1 to Besiktas and not played too well. I decided to have a beer.
“I don’t see a problem with that because for me it is healthier to do that than it is to have a glass of Coca-Cola or a drink like that.
“Suddenly, the bartender turned up and said: ‘The club doctor, medical staff and manager have made it clear to me they do not want you to have a beer.’
“I still don’t know why this was the case but whatever the reason, I was fuming.
“I grabbed my bags and stormed off to my room without even having dinner. That is how upset I was.
“For me, Rafa was in the wrong. It suggests the manager does not trust you to look after yourself in the right way.
“He saw it differently and, if he has a small weakness as a manager, it is that he did not have a massive career as a player before he moved into management.”