The English international, who has scored 56 goals for his club and country combined during the current calendar year, also became the leading scorer in Europe, ahead of football superstar Lionel Messi.
"Harry is world-class," the Argentine was quoted as saying by The Guardian on Tuesday.
"Of course, Messi and Cristiano are different. Today -- one striker in the world, a specific position -- who is better than Harry? It's difficult to say he's the best but he's shown to everyone he's one of the best.
"Both of his records are massive -- to break the Premier League record set by Alan Shearer and then, if you see that over the last seven, eight or nine years, it's always Messi and Cristiano and now, it's Harry as well," Pochettino added.