Barcelona reportedly want to sign Cesar Azpilicueta and Marcos Alonso's before Chelsea's Premier League opener against Everton next weekend.
The two defenders' respective contracts with the Blues expire next summer but they're both keen to join the Catalans, despite the former signing a new deal this summer.
The Catalan giants have been interested in the long-serving Blues pair all summer but Thomas Tuchel has tried to hold up a double move amid tensions with the LaLiga runners-up.
The two clubs have been in direct battle over transfers all summer with Raphinha and Jules Kounde both opting to join Barca over the Blues, despite Chelsea having offers accepted for both players.