Toon midfielder Barton will see in 2008 in prison after being charged with common assault and affray following an incident in Liverpool over the Christmas period.
Big Sam Let Down By Jailbird!
Allardyce: "Yes, I feel let down by him, of course I do. There's no question about that but I've got to deal with that quietly and privately when the opportunity arises.
"I have spoken to him but I'm not going to tell you what was said. The Joey Barton situation is something we had to put behind us because we've got so many games in such a short period of time.
"We'll deal with that later on and find out what the outcome is when I get the opportunity with the chairman.
"It's disappointing, very, very disappointing but I can't really comment any further than that."