Casemiro is in the final few weeks of his time at Old Trafford, as he prepares to depart at the end of his contract this summer.
The Red Devils are also ready to prepared to do away with Manuel Ugarte this summer, a midfielder who never lived up to expectations under multiple managers in recent years.
Of the 10 games that Ugarte has started for Man United this season, the Red Devils have lost six of them, pushing the club to offload as he continues to disappoint.
Anticipated sales of Rasmus Hojlund and Marcus Rashford this summer will also add to their transfer budget which has also been boosted by their return to the Champions League next season.
This large budget will be splashed on the midfield this summer, with the Daily Mail reporting that United will splash over £150M over the coming months.
The report links Nottingham Forest’s Elliot Anderson, Brighton's Carlos Baleba, Adam Wharton of Crystal Palace, Newcastle midfielder Sandro Tonali and Real Madrid's Aurelien Tchouameni to the club as Casemiro replacements.
Reports also claim that West Ham's Mateus Fernandes and Bournemouth duo Alex Scott and Tyler Adams are also targets for United as they weigh up several transfer targets.