Loukas had been in critical condition after being hit while riding his moped by an 83-year-old man in Strovolos, Nicosia.
He had been hospitalised at the American Medical Centre in Nicosia since then. He was 87 years old.
Apoel, who had provided Loukas with medical care from the club doctor, announced the news on their Twitter account late on Wednesday night. “Mr. Antonakis has left us. The eternal Apoel supporter and permanent Archangelos resident passed away at 87...