The Premier League club agreed a deal worth an initial £19million to sign Diallo from Italian club Atalanta in October.
The move hinged on Diallo earning a work permit and Solskjaer believes the necessary paperwork has been passed to allow the 18-year-old to complete his move to Manchester United.
Speaking after the 2-1 victory over Aston Villa, Solskjaer said: ‘We have had all the paperwork, I can’t see any obstacles. He’s coming.
‘I hope very soon he will be with us.
I’m very excited about bringing him in. I think he’s shown a few times his qualities.
Of course he has to learn to play in England, that’s a different level of football. We’ll give him time to develop and to express himself.
Apart from that, I’m not really thinking too much on what we’re going to do with players. Of course, we’re always working long-term.
‘That’s the big thing. We have targets we need long-term for the club.‘
Diallo has made five appearances for Atalanta’s first-team, scoring on his debut against Udinese in October 2019. The structured deal for Diallo could rise to £36m.
The teenager will join a Manchester United team who are joint-top of the Premier League after their victory over Aston Villa.
‘We’ve just got to keep working and improving as a team. Every time you win a game you take one step further.
‘You’ve just got to accumulate the points. They all count the same.’