Sky Sports reporter Dharmesh Sheth reported that clubs from home and abroad are growing interest in free agent Antonio.
Premier League, the Championship and overseas clubs including the Saudi League have had initial contact with the striker's representative to explore the conditions for the transfer.
Antonio suffered a serious car accident in December last year and has recovered. He played for Jamaica in June this year and also participated in West Ham youth training.
Today, West Ham has officially announced that Antonio will leave the team after the contract expires. Antonio, 35, plays as a center, and currently costs 700,000 euros.