Tottenham Hotspur welcome Wycombe Wanderers to White Hart Lane tomorrow.
Mauricio Pochettino's men are heavily favoured to progress into the fifth round, when they host League Two side Wycombe at White Hart Lane.
The visitors are heading into the game on the back of an excellent run of form, however, and are currently in the midst of a 16 game unbeaten run in all competitions.
But Merson does not expect to see a shock at the Lane tomorrow, predicting a comfortable win for Spurs, when writing his column for Sky Sports:
"Wycombe are doing very well at the minute but I cannot see past Tottenham at home. Having started the FA Cup in the first round it's a great achievement from Wycombe to get to round four. It's a great pay day for them too, but that will come to an end at White Hart Lane."
Prediction: Tottenham Hotspur 3-0 Wycombe Wanderers
Tottenham are currently flying high in the Premier League table, and currently occupy third spot, nine points adrift of league leaders Chelsea.
Tottenham manager Mauricio Pochettino
And despite many pundits claiming that Spurs' priority should be the Premier League, they are a club with a proud tradition in the FA Cup, and a home draw against a League Two side presents them with a fantastic opportunity to progress in a competition that they have not won since 1991.