The Red Devils host the Belgian club in the Europa League quarter-final second leg at Old Trafford on Thursday night after Sunday's massive win over Chelsea in the Premier League.
United drew 1-1 with Anderlecht in Belgium in the first leg last week.
"We have to approach it like we have Chelsea," said Young.
"In Brussels they had one chance and scored and we were disappointed after the game. It felt like a loss.
"We have an away goal and are now at home and I am sure if we play like we did today then we will be okay."