The 27-year-old moved back to London for a fee of around £30million after Barcelona told him he was no longer needed.
Fabregas is hoping to make his mark on the World Cup as the holders Spain look to be triumphant in Brazil and now the midfield man can focus solely on the tournament with his future sorted.
The former Arsenal man only scored more than ten league goals in one season for Barcelona and the Spaniards have revealed their disappointment at his recent contribution.
‘Despite glowing starts to each campaign, Cesc’s contributions to the cause gradually decreased as each season drew to a close,” a club statement read.
‘From being someone who joined in with the attack, supplying and scoring goals, the magic tended to fade later on in each season. He only scored one, six and one goals in the last 24 games of each season.
‘For some reason, he was never as good in the second half of a season as in the first.’