Olympiakos fullback Leonardo Koutris is attracting Premier League interest.
The Mirror says West Ham are also lining up a £5m January deal for Greek left-back Koutris.
The 23-year-old plays in his home country for Olympiakos - alongside former Manchester City midfielder Yaya Toure.
He was recently scouted by Hammers technical director Mario Husillos and a January move is now being considered.