The 23-year-old put in a busy and solid display at the Tottenham Hotspur Arena on Saturday as he weighed in with an early effort in each half and generally linked defence and attack well.
It was a great day at the office for Spurs as they raced into a four-goal lead before the first half was even over, an early double from Son Heung-min putting Mauricio Pochettino's side on their way before Patrick van Aanholt put into his own net and Erik Lamela added a fourth.
The result saw Tottenham finish the matchday third in the table on eight points from five games, with Manchester City two points ahead and Liverpool seven ahead after Jurgen Klopp's side won all five of their Premier League fixtures so far, and Merson was impressed with what he saw from the £50,000-per-week ace (Spotrac).
"Tottenham made Crystal Palace look average," Merson told Sky Sports. "They are a team that have won away to all the big teams, but in the first 45 minutes, Spurs were back to the side we all know on Saturday, but for me it's already too late for them to catch Liverpool.
"Harry Winks is such a massive player for them, the way he gets the ball moving quickly. They've got the movement of Son, Kane and Lamela. They looked a proper team and as soon as the first whistle blew, they meant business. They rolled the ball back to the centre-half, they lumped it forward and Winks put it over the bar within 10 seconds. The fans didn't have to wait."
Up next for Spurs is Wednesday night's Champions League trip to Olympiacos before returning to Premier League action on Saturday away at Leicester City.
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