Chelsea supporters have risked ruining their previously unblemished relationship with Petr Cech after some angry fans sent the club's former goalkeeper death threats following his defection to London rivals Arsenal.
The 33-year-old stopper was officially unveiled as a Gunners player on Monday afternoon, ending his 11-year association with the Premier League champions after completing a £10.9 million transfer to the Emirates Stadium.
After losing his place in the Blues starting XI to exciting young talent Thibaut Courtois the veteran custodian asked to leave west London in order to secure more regular first-team football, and has now penned a four-year deal with Arsene Wenger's side.
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Jose Mourinho wanted Cech to stay at Stamford Bridge and was certainly opposed to him joining a direct title rival, but the Portuguese coach was overruled by Russian owner Roman Abramovich who granted the loyal servant his wish out of respect for everything he's given the club over the past decade.
The Czech Republic international wrote a classy open letter to Chelsea supporters thanking them for the backing they've provided him over the years in west London, but sadly the memories could be tarnished by the few disgraceful online trolls that posted several unsavoury messages on social media.
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It's a sad state of affairs when any player is subjected to such poisonous vitriol and hatred, but particularly when it's somebody as likeable as Cech - a player that served Chelsea with such distinction and should be regarded as one of the greatest ever goalkeepers in English top-flight history.
It didn't end there, either, after one 'fan' targeted the new Arsenal signing's family, whilst another spoke about the career-threatening head injury that Cech suffered against Reading back in 2006 and used that against him to display his dissatisfaction about the switch of allegiances.
Hopefully Cech will not let those disgusting comments change his opinion of the Chelsea faithful as a whole because the large majority of fans feel deep respect for him and will wish the former Rennes man all the best for the future (just not in the Community Shield on August 2 or either Premier League fixture against the Blues).
Chelsea fans: Let us know how you feel about Petr Cech's decision to join Arsenal? Do you think the transfer could come back to haunt Jose Mourinho's side next season? Have your say below...