With Alexis Sanchez also heading out on loan, the weight of goalscoring expectation is lying on the shoulders of young stars Marcus Rashford and Anthony Martial and United chiefs are thought to be keen to address their striking issues in January.
But while Juventus ace Mario Mandzukic looks set to plug the gap in the winter transfer window, Merson believes the long-term answer, Kane, is right under their nose.
‘Manchester United need to go and break the bank because they need a goalscorer,’ Merson told Sky Sports. ‘For me, he’s one of the best around and he’s proven.
‘Manchester United don’t need to go out and buy someone who might be good in two years.
‘They need someone to come in and hit the ground running with 25 goals next season.
‘He’d be moving to the biggest club in the world. Even if they spent £120m, you know you’re buying goals and you wouldn’t be sweating.
‘He’ll get you 25 goals a season without you sweating.
‘Can you imagine a top player like that not winning a tap in his career?’