England manager Gareth Southgate has hit out at a minority of Three Lions fans for "completely unacceptable" behaviour during the national side's encounter with Germany earlier this year.
Some derogatory booing could be heard during the game in Dortmund in March, which the hosts won courtesy of a Lukas Podolski goal.
Southgate's side welcome Germany to Wembley for another friendly game this Friday - two days ahead of Remembrance Sunday - and the manager has warned against a repeat of such behaviour.
"I was asked about this immediately after the game in Dortmund and to be honest I wasn't aware at the time of exactly what was said, so I wasn't as strong as I'd like to have been on that," Southgate told reporters today.
"I think it's completely unacceptable. We have a huge percentage of fans who follow us brilliantly, but the element that wanted to shout that night is completely unacceptable.
"We've moved on from those times, they don't represent us as a team, the people who do that. But I want to be very specific because I don't want it to be 'our fans' as a collective, we're talking about individuals.
"Also to add to that, I think Germany have taken a huge step in agreeing to wear a poppy for this fixture and that's something that should be noted."
England go on to face Brazil at Wembley four days after their encounter with Germany.
