The Wales football team will wear a specially-designed patch supporting a cancer charity on Wednesday night and their shirts for the friendly against Montenegro will be auctioned on eBay following the game, the Football Association of Wales (FAW) confirmed.
An FAW official said: "We will have patches on the players' shirts for the match supporting a charity that works in aid of a cancer charity, checkemlads.com, specifically for male cancer problems.
"The players are concerned about John's situation. Apart from the patches on their shirts, they will also wear T-shirts during the warm-up for the match with John's name on them.
"Afterwards we will get all their shirts back and then auction them for charity."