Chelsea’s Nigeria midfielder John Obi Mikel was forced to close his Twitter account on Thursday after suffering a barrage of racist abuse prompted by his costly mistake against Juventus. Mikel removed his profile from the micro-blogging website less than 24 hours after his blunder contributed to Juventus’s late equaliser as Chelsea were forced to settle for a 2-2 draw in the opening match of their Champions League defence at Stamford Bridge on Wednesday. Chelsea originally insisted it was coincidental that Mikel had decided to delete the ‘Mikel12Official’ account he only set up earlier this year. But the European champions later admitted they had informed the police after being made aware of the unacceptable nature of the abuse Mikel had endured. “We’ve been made aware of racist tweets targeted at Mikel which are totally unacceptable, disgusting and abhorrent,” a Chelsea statement read. “We’ve informed the police and support taking the strongest possible action.”