The King just wants a "good game of football" from England's World Cup clash against Wales, a former player has claimed.
Gary Bennett said he asked Charles who he will be supporting in the match, after collecting his MBE at Windsor Castle on Tuesday.
Mr Bennett's work with educational charity Show Racism The Red Card earned him the gong for services to anti-racism in football.
Speaking at the investiture ceremony, he said that getting his award from the King was the "icing on the cake".
Tennis star Emma Raducanu also collected an MBE at the investiture ceremony.
The former Sunderland AFC star added: "I was able to have a three or four-minute chat with him so that was fantastic, around football and especially tonight with the England vs Wales game, it sort of put him on the spot.
"I did ask who he's going to support really in the game between England and Wales, I think he just wanted a good game of football."
Pressed on what Charles said, he added: "He just wanted a good game."
Sharing his own thoughts, Mr Bennett said it will be a "difficult game for Wales on paper" but said they could get lucky on the night.
However, he said: "If they do get it right then England should win."
On what more should be done to kick racism out of football, he said: "It's not just racism, again, it's about discrimination.
"I think it has been well highlighted, especially with the World Cup being in Qatar, but we've got to hopefully continue educating ourselves and educating people and raising the awareness."
Dame Nia Griffith, Labour MP for Llanelli, Wales, was also excited about the so-called 'battle of Britain' football match.
Dame Nia, who collected her gong at the ceremony, said: "I'm very excited about the game tonight because I do think that when the Welsh get fired up and when the Welsh are facing the English you absolutely get the best out of them.
"And although we may not have been, shall we say, exactly enthused by their performance so far in Qatar, we are looking forward to tonight making up for all of that and looking forward to a fabulous victory."
The two home nations meet at the Ahmad Bin Ali Stadium for their final group B fixture on Tuesday.