Bayern Munich have reacted angrily to news that Arjen Robben will be sidelined for eight weeks as a result of rushing back from a hamstring injury to play for Netherlands at the World Cup.
Robben, 26, was injured in Netherlands' warm-up matches ahead of the tournament but was hurried back with the help of a special treatment programme and helped the Dutch reach the World Cup final.
However, the cost of that is now being paid as tests conducted on Tuesday found a tear in the hamstring that was not properly diagnosed earlier.
"It is a clear tear," Bayern club doctor Hans-Wilhelm Muller-Wohlfahrt said. "I find it irresponsible that this was not diagnosed accurately and that Arjen has played with it. I offered several times to help with the diagnosis but was not called."
The injury will rule Robben out of the start of the Bundesliga campaign and the opening Champions League matches.
"This diagnosis after my return to Bayern is a shock," Robben said. "I am very disappointed. The enforced break is bitter for me and the team."
Bayern will now seek compensation from the Dutch federation (KNVB) and have asked FIFA to step in as a mediator if necessary.
"Of course, Bayern Munich are very angry," chairman Karl-Heinz Rummenigge said. "Once again we must pay the bill as a club after a player is seriously injured playing for a national team."