Wayne Hennessey is desperate to improve his knowledge of Hitler and Nazi Germany following the revelation he did not know what a Nazi salute was, Roy Hodgson has said.

The Crystal Palace goalkeeper was charged by the Football Association with making an offensive gesture after he was pictured with his right arm in the air and left hand above his mouth in a photograph posted on Instagram. After the charge was found not proven, the FA commission, in its written reasons, said Hennessey had showed a “lamentable degree of ignorance” about Hitler, fascism and the Nazi regime.

“We and Kick It Out work very closely together and between us I think we will be looking for a solution in the case of this one individual, but I would guess this might be a subject which goes beyond one individual,” Hodgson said. “We might be highlighting with Wayne [something] that is actually rife throughout football.

“I’ve no idea about the level of knowledge in relation to the Holocaust, the second world war, in other clubs or even in our club. It’s now something we know may well exist and will have to be dealt with.

“Together, the club and Kick It Out, we will sort it out, certainly where Wayne is concerned because he is actually very desperate now to learn as much as he can.”

The Palace manager, when asked whether he was disappointed at such a glaring gap in the 32-year-old Wales goalkeeper’s education, said: “I don’t know how disappointed one should be. It’s different to people of my generation, who are much closer to it. I don’t quite know what the young generation is learning about it.

“I think what is important in that report is that they made it perfectly clear they found Wayne a very honest and kind and good individual.”