Leicester City have confirmed that Michael Keane has extended his loan spell until the end of the season.
The England Under-19 international has impressed since joining the Foxes and has been keen to help the East Midlands club in their bid to gain promotion to the Barclays Premier League.
City boss Nigel Pearson revealed recently that he hoped to retain the central defender's services and an agreement has been reached with United on Wednesday.
The King Power Stadium outfit are in second place in the Championship table and have only conceded two goals in the six games that Keane has played since initially arriving in November, with injury keeping him sidelined until the New Year.
Despite their league priorities, Leicester are also still involved in the FA Cup and, if Pearson's side are successful in a home replay against Huddersfield, Keane should line up against Wigan in the fifth round of the competition.
"Michael Keane's done great but the whole team is flying and it helps with Ritchie De Laet playing well, while Danny Drinkwater and Matty James are also impressing," Reserves boss Warren Joyce told ManUtd.com. "Even the lad Ben Marshall was at United at youth level as well. It helps having those guys around."