Prior to securing the signature of Ighalo, United are understood to have halted their pursuit of Cavani after finding out how much PSG would demand for the player.
The 30-year-old is now on the payroll of Chinese club, Shanghai Shenhua.
While Ighalo is now primed to be the first Nigerian to play for Manchester United, his former Super Eagles team-mate John Obi Mikel was the first to sign a deal with the Red Devils but in the end did not play for the Premier League giants.
He has scored 10 goals in 19 games for Shanghai this season and netted 36 in 55 games last season for Changchun Yatai.
United Kingdom confirms first coronavirus cases as outbreak spreads globally
One patient is a man in his 50s who had symptoms, and the others-a man in his 40s and a woman in her 50s-are asymptomatic. With most traffic banned, people who venture outside have to walk or bike everywhere in the huge city.
"I don't think I will be moving, but I'm not sure I'd say no if United called".
If you needed any evidence of the mess that Manchester United make of transfers these days, then their last-minute hunt for a striker would be a prime choice. He will come in and give us an option of a different type of centre-forward for the short spell he's staying with us.
Solskjaer explained his decision to sign Ighalo before the Premier League match against Wolves.
How Manchester United could line up with Joshua King. He has the sort of turn of pace which will fit in well to the style of football Ole Gunnar Solskjaer is trying to play.
Ighalo completed a dream sensational EPL return after agreeing to terms with the Old Trafford outfits albeit without no option of purchase at the end of the season.