Celtic are at odds with the South Korean FA with Cha Du-Ri called up just weeks after an injury on international duty, reports the Scottish Sun. Du-Ri did his hamstring playing in a World Cup qualifier in Kuwait earlier this month.
He's been selected for next week's double-header against Poland - a friendly - and the United Arab Emirates.
National boss Cho Kwang-Rae said: "We know Cha Du-Ri has had a hamstring injury.
"But we have been told he will be fit in time for these games, therefore he is in the squad."