In simple terms, Mauricio Pochettino was describing Harry Kane as a highly effective striker on the soccer field. When someone is called a "killer" in this context, it typically means they are exceptionally skilled at scoring goals and can be devastating to opposing teams.
The deeper meaning of this quote reveals much about the character and abilities of Harry Kane. It suggests that Kane's presence and impact on the game are so significant that he seems almost unstoppable when attacking the opponent’s goal. This kind of praise not only highlights his technical skill but also implies his mental toughness and relentless approach to scoring, which can be intimidating for defenders and goalkeepers alike. The term "killer" emphasizes how Kane is a constant threat and a key reason why teams fear facing his side.
Mauricio Pochettino, the former manager of Tottenham Hotspur, where Harry Kane played at the time, is known for his ability to bring out the best in players through motivational statements like this one. Pochettino often uses vivid language to inspire and challenge his team members, and describing Kane as a "killer" reflects both respect for the player's abilities and an understanding of how critical he is to Tottenham’s success on the field.