The 26-year-old central defender coveted by United since he starred as England reached the World Cup semi-finals -- is to undergo a medical at United over the weekend, according to Sky Sports and the BBC. Man Utd had said they would not pay more than 65 million pounds for the player, but have given in in order to secure his signing.
Maguire's fee out-strips Dutch international Matthijs van Ligt who in July moved to Juventus from Ajax for a combined fee of 75 million euros ($84.2 million) plus 10.5 million euros of add-ons.
De Ligt's compatriot Virgil van Dijk cost Liverpool £75 million when he moved from Southampton in January 2018.
Maguire becomes United's third summer signing following full-back Aaron Wan-Bissaka and Daniel James, who arrived from Crystal Palace and Swansea respectively. Maguire made 69 Premier League appearances for Leicester after joining from Hull City in 2017 and signed a new five-year contract with the Foxes last September.
United's transfer business is unlikely to stop there with a potential swap deal involving Argentinian striker Paulo Dybala joining them from Juventus and Belgian international Romelu Lukaku moving to the Italian champions.