The 17-year-old striker has signed an 18-month contract with Queens Park Rangers.
“We are pleased to bring Petros in,” head of youth development Steve Gallen told the club’s official website.
“He is a good lad. He’s quick, bright, lively and he wants to score goals.
“He can also play on the flanks and get crosses into the box.
“He is a good addition to our youth department.”