According to "football-italia" news, Chiellini's injury is not serious and he is expected to fully recover within 7-10 days.
In Juventus’s 2-0 victory over Dynamo Kyiv in the Champions League last night, Chiellini was replaced early due to a flexor tingling. Someone worried that he was a thigh strain. But Chiellini has ruled out the possibility of muscle damage after examination today, so his injury is not serious.
Juventus will assess his injuries daily and he is expected to fully recover within 7-10 days.