The Red Devils are believed to be deciding whether to ahead with a move for Maguire, after having their initial £70million rejected.
Leicester have told Manchester United chiefs they can clinch the deal, but only if they meet their £90m valuation.
Sky Sports journalist Kaveh Solhekol has urged United to get give Mino Raiola another call, before going ahead with the Maguire deal.
“One point I would make was that if I was at Manchester United now, I would be seeing what was happening with Matthijs de Ligt,” he told Sky Sports News Transfer Centre.
“If I’d offered £70million for Maguire who is 26, De Ligt is seven years younger.
“He’s 19 years old and looks like he could be going to Juventus for something like £50m or £60m.
“I know United have been in for De Ligt before, but is it worth having just one more go?
“Just picking up the phone and ringing Mino Raiola again.”
United were thought to be in the race for De Ligt before reports stated they’d withdrawn their interest over concerns over his father’s weight.
Other speculation suggested the Dutchman was not interested in a move to Old Trafford.
It now looks as if he could seal a move to Juventus, beating Paris Saint-Germain and Barcelona to his signature.
United are now believed to be deciding whether to pay the extra £20m to secure the signing of Maguire.
West Ham’s Issa Diop has been earmarked as a cheaper alternative, should they decide against a move for their number one defensive target.
Solskjaer is said to have consulted a number of United players to get the down-low on Maguire.
Ashley Young, Marcus Rashford, Jesse Lingard, Phil Jones and Chris Smalling have all played with him for England.
They told their boss that he is a down to earth guy with a brilliant attitude towards his football.
Timeline of Manchester United’s interest in Maguire
-Harry Maguire plays well at the World Cup with England, netting in the quarter-final against Sweden alerting Manchester United to his talents.
-United make their interest official in Maguire to Leicester.
-The Foxes demand £75m for the England international to leave which Ed Woodward refuses to pay.
-After the transfer window officials at United claim they were ready to pay £100m for the right profile of defender. Raphael Varane is mentioned as the sort of player they wanted.
-United change their plan to short-term options rather than long-term ones with Varane being a four-time Champions League and World Cup winner.
-The Red Devils led by Jose Mourinho and Ole Gunnar Solskjaer have their worst defensive top flight season since 1978-79.
-Manchester United and Solskjaer settle on a new transfer strategy with an emphasis on young players and a preference for British additions.
-United make a £70m bid for Harry Maguire on July 2 as they look to get a deal over the line, it’s rejected.