Bayern Munich president Uli Hoeness has accused Dutch physiotherapist Dick van Toorn of needing glasses for failing to spot that Arjen Robben had a serious injury.
And he has also blasted the French Football Federation for a lack of decency in requesting Franck Ribery attend a hearing in Paris on Tuesday.
Netherlands winger Robben has been told by Bayern club doctor Hans-Wilhelm Muller-Wohlfahrt that he faces eight weeks on the sidelines after it was discovered on his return to pre-season training at the start of the month he had a serious muscle tear.
The 26-year-old was injured in Netherlands' warm-up matches ahead of the World Cup, but Van Toorn was able to get him fit to play in South Africa despite fears he would miss the entire tournament.
The physio has since vehemently rejected Bayern's claim he was negligent in his treatment of Robben, but Hoeness is not prepared to let the matter rest.
"We have in Muller-Wohlfahrt the best sports doctor in the world with a success rate of 100%," Hoeness told Bild. "If Mr Van Toorn can not recognise the injury then he should buy himself some glasses.
"It was negligent of the Dutch to let Robben play for even a single second at the World Cup. He played injured at the tournament and we are now paying the cost. That can surely not be right. We are demanding compensation.''
Bayern are also unhappy over the treatment of one of their other foreign stars, Ribery, who was one of five France players summoned to Paris to appear before the FFF's disciplinary committee to discuss the behaviour of the national team during the tournament.
"We are not sending the French our players, who are in the midst of preparing for the season, on demand," Hoeness said. "They have absolutely no decency.
"If they want something, then they should surely come here. The club has behaved in an exemplary fashion in this matter. I can only welcome the measure not to allow Franck to travel to Paris. I would also not have let him go.''