Despite scoring two goals in his first two internationals, Lambert is seen as being well behind Wayne Rooney, Daniel Sturridge, Danny Welbeck and Andy Carroll - if fit - in the England striker stakes ahead of next summer's World Cup.
Pochettino said: "It is very important for him to be in a club that is high up the table for his chances of going to Brazil. He is more visible and more publicly known when a player is playing for a top club that is playing well for his future in the England side. It is very important."
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