However, manager Mauricio Pochettino is still likely to make changes with his team set to face Arsenal on Saturday. The FA Cup represented a wonderful opportunity for the Spanish hitman to find his goalscoring touch, but in three starts against League Two opposition, he couldn't muster a single strike.
The large pitch and favourable playing surface certainly benefitted Spurs but it was far from an embarrassment for the visitors. This is an improvement over Millwall, which is a mid-table Championship side that's based in London and has fearsome home support and a rabid fan base. The Argentine gaffer will be tempted to trot his English talisman out against Newport, but he's got to make a more mature choice. He could be paired alongside Harry Winks who also returned from an injury and made the bench against Liverpool.
To borrow a phrase familiar to the Carlow-born striker in the Newport County squad, Pádraig Amond, there won't be a cow milked in Newport tomorrow.
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The goal, although not against the run of play, meant Newport had to respond immediately and they were eventually picked apart as Spurs cemented their place in the fifth-round.
Llorente did well to hold the ball up under pressure, spotted Moussa Sissoko ghosting into space and the midfielder's first-time cross took a big deflection off County full-back Dan Butler to spin home.
It was rotten bad luck, there is no doubt about that.
So can Newport's fans, the thousands who travelled up to Wembley to watch these amber shirts in action. Obviously they've got a good model of preparation too.
Son's direct running was causing problems and the Korean's clever pass allowed the lively Lamela to skilfully place a shot past the advancing Day to extend Tottenham's lead in the 34th minute.
Tottenham's cushion gave them chance to experiment, with Fernando Llorente, Son and Lamela all liberated in the second half.