Sport says the future of Azpilicueta hangs in the balance.
The Spaniard is insisting he had a verbal agreement in place with former Blues owner Roman Abramovich that would see him leave on a free transfer this summer.
He now wants Todd Boehly to honour that agreement as well, rather than trigger an extension.
Azpilicueta wants to be cleared to join Barcelona in a free transfer, with personal terms having already been settled.
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