Manchester United‘s new signing Amad Diallo has been fined £42,000 in Italy over allegations he used fake documents and bogus parents to move to Europe from Ivory Coast.

Diallo was in the United squad for the first time for Tuesday night’s FA Cup tie against West Ham following his £37million move from Atalanta.

The FIGC, Italian football’s governing body, has handed out the fine after the 18-year-old winger and his brother Hamed – who plays for Serie A side Sassuolo – accepted a plea bargain to avoid a ban.

The investigation looked into allegations that a child trafficking ring of five adults smuggled the two boys into Italy on a family visa six years ago, including two who falsely claimed to be their mother and father – Hamed Mamadou Traore and Marina Edwige Carine Teher.

The false documents were said to have been used so Diallo could sign for junior club Boca Barco in 2015 and Atalanta three years later.

It is also alleged that Amad Diallo Traore was not the player’s real name and Hamed may not even be his brother.

Having dropped the name Traore on his 18th birthday last July and legally changed it to Diallo in September, he decided to have Amad on the back of his shirt at United.

The move went through in October after United agreed to pay £19m plus a further £18m in add-ons to Atalanta, but Diallo wasn’t able to move to Old Trafford until January while he obtained an Italian passport and waited to be issued with a UK visa and work permit.

The teenager was fast-tracked into United’s first-team squad after scoring twice on his debut for the club’s Under-23 team against Liverpool last week and then making three assists in his second game against Blackburn.

Diallo was an unused substitute in Tuesday’s 1-0 win over West Ham at Old Trafford, but is expected to make his senior debut soon.