Bayern Munich have reportedly had a bid in excess of £20m for young winger Callum Hudson-Odoi rejected by Chelsea.
The German champions are believed to have already had a previous bid of £13.5m knocked back before returning with a fresh offer on Monday.
Sky Sports News reports that Bayern have made signing the England age-grade international a top priority for the January window.
However, Niko Kovac's side have supposedly been informed that it will take double the amount offered to land their man, who emerged through Chelsea's academy system and is under contract until 2020.
Bayern's domestic rivals Borussia Dortmund and RB Leipzig are also believed to be in the running to sign Hudson-Odoi, despite the youngster's limited playing time at first-team level.
Germany
Switzerland
Hungary
Scotland
Spain
Italy
Croatia
Albania
England
Denmark
Slovenia
Serbia
Austria
France
Netherlands
Poland
Romania
Belgium
Slovakia
Ukraine
Portugal
Turkey
Georgia
Czech Republic