Ghanaian forward Raphael Dwamena has been ruled out indefinitely with heart problem.
The young striker was detected by medical team of Spanish Lower side Real Zaragoza.
Dwamena was detected with a heart problem after undergoing regular health tests on Wednesday.
The former Red Bull Salzburg striker who is on loan at Real Zaragoza from Levante has been ruled out indefinitely.
He has capped nine matches for Real Zaragoza, scoring two goals and was a regular starter for the Zaragoza.