Juventus midfielder Sami Khedira could be out of action for over a month while he undergoes treatment after being diagnosed with an irregular heartbeat, according to reports in Italy on Wednesday.
Former World Cup winner Khedira has been ruled out of Wednesday's Champions League tie at Atletico Madrid because of atrial arrhythmia.
The condition causes an irregular and fast heart rate and can result in dizziness, shortness of breath and tiredness.
Khedira had suddenly felt his heart beat faster in training on Tuesday and immediately went for treatment.
"Sami Khedira is out of the squad, he stayed in Turin to undergo further tests," said coach Massimiliano Allegri.
"He's an important player for us with good international experience."
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