Manchester United retained list highlights Erik ten Hag challenge this summer

Erik ten Hag knew his first summer at Manchester United would be one of seismic change, and the realisation of what a huge task he has on his hands is finally beginning to sink in.

United confirmed in midweek that both Paul Pogba and Jesse Lingard would be leaving the club for free when their contracts expire at the end of the month, finally bringing to an end two transfer sagas that should have seen both sold while they still had market value. The news was followed by an announcement Juan Mata would also be leaving at the end of the month.

Instead of generating valuable income, United have once again paid the price for the mismanagement of individuals and a lack of a long-term plan. Ten Hag is the man who will have to pick up the pieces for these past mistakes. There was no surprise at Pogba and Lingard finally leaving the club as free agents, but it did seem slightly surreal that these exits — which seemed so inevitable for so long — had finally been made official.

READ MORE: Manchester United confirm Juan Mata departure

Ten Hag's task is now to replace those who will leave for free, not only in terms of quantity but also in terms of the qualities they bring to the first-team dressing room.

On paper, losing the likes of Pogba, Mata and Edinson Cavani might not have a seismic impact on the starting line-up, but their departures will certainly deprive the playing squad of some priceless characteristics.

Such is his standing among teammates and the respect he commands, Pogba will be one of the biggest losses to the dressing room this summer. The Frenchman has been cited as a role model for many young players at the club and has been a vocal figure throughout his six-year spell at the club.

The 29-year-old also has