The England international was heavily linked with a switch away from Old Trafford during last summer's transfer window, with West Ham believed to have had a bid accepted for him.
Maguire decided to stay and fight for his spot with Man United, though, and the 31-year-old, despite some injury problems, has been a regular this season, featuring on 27 occasions in all competitions.
The former Sheffield United youngster is also currently the club's only fit senior centre-back, with Raphael Varane, Victor Lindelof, Lisandro Martinez and Jonny Evans all out through injury.
Ten Hag has spoken about the importance of Maguire at this moment in time, although there remains speculation surrounding his long-term future with the club.
«You have to see it in that perspective. We were always happy with Harry Maguire but he wants to play. He's a great leader, he's a very good defender, very comfortable on the ball,» Ten Hag told reporters.
«When I count all of those abilities, just now when we are on our defending line we have our problems, he is even more important to lead that line, to make us play from the back. So we are very pleased he is there and we need him to get our results and achieve our targets.»
Maguire, who has made 19 Premier League appearances this season, is again set to be joined by 19-year-old Willy Kambwala in the middle of the defence against Bournemouth on Saturday.
Marcus Rashford should be fit despite an injury scare, but Scott McTominay is a major doubt, while Tyrell Malacia, Luke Shaw and Anthony Martial are absent alongside Varane, Lindelof, Martinez
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