Manchester City rallied around Sergio Aguero after the club’s record goalscorer was admitted to hospital with a cardiological issue.
Aguero walked off in the 41st minute of Barcelona’s draw against Alaves on Saturday and underwent ‘a diagnostic and therapeutic process’.
It was the 33-year-old’s first start since leaving City in the summer and his former manager, Pep Guardiola, contacted the striker’s agent after the incident.
‘It’s difficult news for him and his family,’ Guardiola said. ‘We wish him well from all our people.