The UFC 209 co-main event bout between Khabib Nurmagomedov and Tony Ferguson has been cancelled after the former was hospitalised, the organisation has confirmed.
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Nurmagomedov was hospitalised on Thursday evening due to what UFC described as "weight management medical issues" and was released following treatment.
However, the bout - for the interim lightweight championship - was cancelled on the doctor's recommendation.
UFC 209 will be held in Las Vegas on Saturday, headlined by Tyron Woodley defending his welterweight title against Stephen Thompson in a rematch of their UFC 205 bout in 2016.