Mitchell van der Gaag has been confirmed as one of the assistant coaches at Manchester United.
The former England manager, who was Sir Alex Ferguson's assistant at Old United between 1999 and 2001, has not been seen in a coaching role since he managed Queens Park Rangers in the 2018/19 season.
The Dutch head coach of FC Twente, Ten Hag, is the new United boss, and he has previous experience with McClaren.
Van der Gaag had been the manager of the reserve team at the Dutch club for the previous two years before he was hired as the assistant to Ten Hag. McLaren and Van der Gaag were at Selhurst Park to watch Manchester United lose to Crystal Palace.
One of the most successful periods in the history of United was when McLaren was a member of the coaching staff. The first half of 1999 saw the club win the treble under Ferguson, while the second half saw United win the league titles.
He was made a coach for the England national team after managing a Carling Cup triumph and then became the Three Lions boss after the 2006 World Cup.
After England failed to qualify for Euro 2008, he took up head coach roles in the Netherlands with Twente and in Germany with VfL Wolfsburg, before returning to his home country to manage Derby.
You can watch the press conference on the Sky Sports website at 10am on Monday, where Ten Hag will speak for the first time as Manchester United manager.
The new era at Manchester United must be addressed quickly by Ten Hag, who was chosen to lead the club.
As he prepares to tackle the mountainous task at Old Manchester, Ten Hag has forgone his plans to be part of the post-season trip.
Sky Sports takes a look at some of the key areas the Dutchman must fix at United as Ten Hag prepares to start his new role.
You can follow every Man Utd game in the premier league this season with our live blogs on the Sky Sports website and app, and watch match highlights for free after the game.
Want the latest news from Man Utd? You can watch Man Utd goals and video, keep track of the Premier League table, and watch Man Utd games on Sky Sports.
You can get all this and more by using the Sky Sports Scores app and setting Man Utd as your favourite team.
Find out how to get Sky Sports, listen to the best Premier League reaction and expert analysis with the Essential Football, follow the Sky Sports social accounts, and keep up-to-date with the Transfer Centre.