Agents for Inter Milan winger Ivan Perisic are urging Premier League clubs to firm up their interest.
Inter have put the Croatia international up for sale this week, with the aim to raise €50-60 million from his summer sale.
Manchester United and Chelsea have made tentative enquiries this year regarding Perisic's situation.
However, it is only PSG which have come forward with a concrete approach, with a willingness to bid €50 million for the attacker.
Perisic's priority is a move to England and his representatives are now pushing both United and Chelsea to get serious - if they want to sign the player.