With Casemiro missing through suspension, compatriot Fred was expected to start against table-topping Arsenal.
The Brazilian excelled against Manchester City last weekend and his energy is a valuable weapon against a team of Arsenal’s prowess.
However, Fred was named on the bench for the visit to the Emirates with Ten Hag picking McTominay instead.
McTominay and Christian Eriksen started the 3-1 victory against Arsenal in September, when Casemiro had just joined the club.
‘We think he [McTominay] can fill in very well,’ said Ten Hag ahead of kick-off.
‘We have a special role for him and I hope it will work, a little bit like last time.’
Wout Weghorst starts for the second time in United colours, with Anthony Martial absent from the squad through injury.
Aaron Wan-Bissaka once against starts at right-back as Diogo Dalot remains sidelined.
MORE : When did Manchester United last win the Premier League title?
MORE : ‘It makes them better’ – Erik ten Hag speaks out on angry row between Bruno Fernandes and Antony during Crystal Palace draw
For more stories like this, check our sport page.
Follow Metro Sport for the latest news on
Facebook, Twitter and Instagram.
Share your story or advertise with us: Whatsapp: +2347068606071 Email: info@newspotng.com