Nantes are demanding big money to sell Emiliano Sala in January.
Sala shares the top of the Ligue 1 goalscoring charts with PSG starlet Kylian Mbappe.
West Ham and Leicester City are scouting Sala ahead of the winter market, though will have to cough up big to convince Nantes owner Waldemar Kita to sell.
With 50 per cent of any fee going back to Sala's former club Bordeaux, Kita is demanding offers start from €28m.
Sala has scored 11 goals from 14 games so far this season.