Hoffenheim player Boris Vukcevic's car crash last month that left the midfielder in a coma was apparently caused by the player's low blood sugar level, police and the Heidelberg state prosecutor's office said on Friday.
The 22-year-old has been in a coma since his car collided head-on with a truck on September 28. He sustained serious head injuries and needed emergency surgery.
"So-called low blood sugar seems to have been the cause for the driver to drift into oncoming traffic and crash with the 40-tonne truck," Heidelberg police and the state prosecutor's office said in a joint statement.
Doctors have said the condition of the former Germany under-21 player remains critical but he has shown some signs of stabilising.
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