Manchester United's interest in Lucas Hernandez has kicked Atletico Madrid into action.
The France defender has been linked with United this week, where United boss Jose Mourinho would be willing to see his €80m buyout clause matched.
Manchester City are also interested in the World Cup winner.
Aware of the sudden Premier League interest, Atletico have moved to open new contract talks with Lucas' minders.
Atletico want to extend the deal a further year to 2024 and raise his buyout clause to €150m.