The pair arrived at Kenilworth Road this summer, having both spent time inside United&aposs academy as young prospects. Chong joined from Feyenoord aged 16 while Mengi was born in Manchester and joined his boyhood club aged seven.
Following a series of loan spells, the pair left United in search of regular football. And both are enjoying life in Luton, playing regularly in the Premier League.
Chong scored in last week&aposs 1-1 draw at home to Liverpool, while Mengi has been excellent at the back for Rob Edwards&apos side. And Ten Hag expects both to step up their game at Old Trafford.
Of course they want to show that they were for so long part of this club,” Ten Hag told MUTV of Chong and Mengi. “I think they have Manchester United in their hearts, so definitely they want to show something and they want to win here. That is always the danger when old players are returning to Old Trafford.
That draw at home to Jurgen Klopp&aposs side took Luton out of the relegation zone on goal difference, and Edwards&apos side are beginning to build some results on their first season in the Premier League. Ten Hag has an excellent record against newly-promoted sides but is under no illusions regarding the task this afternoon.