Those who submit STAFF changes, please provide an official source that shows the transfer/release. Transfermarkt isn't always trustworthy when it comes to staff.
51062324 · Contracted to Tigres UANL
Juan José Ruíz is a 48 year old Sports Scientist from Mexico.
They are currently contracted to Club de Fútbol Tigres de la Universidad Autónoma de Nuevo León earning £450 per week.