Edinson Cavani’s joy at scoring twice for Manchester United on Sunday could be dampened as he is to be investigated by the Football Association over a social media post he subsequently deleted. The 33-year-old Uruguayan striker sent an Instagram post including the Spanish word “negrito” (‘black’) in reply to a message of congratulations after his brace completed a come-from-behind 3-2 win over Southampton. United said the word was clearly used in an affectionate manner and has different connotations in South America. The club said the former Paris Saint Germain forward had been...