Bayern Munich officials have voiced concerns about their midfielder Aleksandar Pavlovic joining the German national team next week in connection with hip problems.
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Pavlovic was not part of the Bayern squad in Saturday's 4-0 Bundesliga win over Union Berlin due to the injury.
Germany play World Cup tune-up matches on Friday in Switzerland and against Ghana three days later but coach Vincent Kompany and sporting director Christoph Freund indicated they would prefer Pavlovic to stay in Munich.
"We will calmly discuss it with Aleks. He had problems and wasn't in the squad. He has played a lot. You have to be careful," Freund said.
"It is very important that it isn't anything long-term."
Treble chasing Bayern want all players on board for the business end of the season when they face Real Madrid in the Champions League quarter-finals, Bayer Leverkusen in the German Cup semis, and clinch another Bundesliga title.
Kompany said the issue "will be discussed with the doctors" and stressed that the internationals are only friendlies. He said the federation DFB wants Pavlovic "fit for the World Cup - and we for the last two months" of the season.
Germany coach Julian Nagelsmann gathers the national team on Monday.
Bayern and Nagelsmann had also agreed to leave playmaker Jamal Musiala out of the squad and have him stay in Munich after he sustained a pain reaction last week in the foot he severely injured last year.