United have endured a challenging start to the new season, with back-to-back Premier League defeats against Brighton and Brentford.
But while Jurgen Klopp's side are expected to be even tougher opponents, Rashford is just as excited to face the club's fiercest rivals now as he was when he was younger.
Having been at United since the age of seven, the Academy graduate has featured in many previous meetings with the Merseysiders.
''To be honest, I feel exactly the same [as in the past],'' said Marcus, when speaking to club media this week.
''Against anyone, you want to win but against your Liverpools and Manchester Citys, you want to prove why you play for Manchester United.