The former Gunners star signed for the West London club from Barcelona earlier this week, and then found himself inundated with foul-mouthed tweets.
Fabregas infuriated many Arsenal followers by penning a five-year deal at Stamford Bridge, with online trolls going as far as to tell Fabregas they hope he breaks his leg during his World Cup campaign with Spain.
Typical of the comments made, one fan wrote on Twitter: “Hi Cesc. I hope you break both of your legs you lying turncoat ****!”
CESC FABREGAS TRANSFER TRACKER:
Juan Mata meant no need for Fabregas says new Manchester United boss Louis Van Gaal
Arsenal and Chelsea fans took to social media to voice their opinions after Cesc Fabregas completed a stunning move to the Blues.
Petr Cech has hailed the signing of Cesc Fabregas after the Spain midfielder completed a £27m switch to Stamford Bridge earlier today.
But Arsenal fans are calling for Arsene Wenger's head following the move.
The Spanish star has gone back on his word after previously saying he would never sign for another English side.
Video Special on all you need to know about the new Chelsea star.
Jose Mourinho confirms Chelsea want £30m Cesc Fabregas.
Chelsea are looking to sell Marko Marin back to his old club Werder Bremen to help make way for new midfield arrival Cesc Fabregas.
Blues boss Jose Mourinho has revealed goalkeeper Thibaut Courtois will return to Stamford Bridge next season.
The Belgium shot-stopped has been with Atletico Madrid for the past three season, and has made it clear in the past he wants to be first choice if he returns to Stamford Bridge.
"When the World Cup in Brazil is over, Courtois will be coming straight back to Stamford Bridge - end of story," Mourinho told Spanish paper MARCA.
THIABUT COURTOIS TRANSFER TRACKER:
Atletico Madrid announce Miguel Moya signing - paving the way for Thibaut Courtois to return to Chelsea.
Courtois confirm talks with Chelsea boss Jose Mourinho over Stamford Bridge future.
Atletico Madrid loan star Thibaut Courtois reckons Chelsea return could damage his career
