The 25-year old midfielder was called into Roy Hodgson's England squad for this Friday's World Cup qualifier with Montenegro and Tuesday's clash with Poland and his club boss is of the belief that his current form will have him not too far away from his international debut.
"I'm very happy for Adam," Pochettino said of Lallana, who scored the opening goal in Sunday's 2-0 win over Swansea City.
"He's a great bloke and a great professional and he's very passionate about this club, about Southampton, so I'm happy for him.
"I'm very happy that he scored and for everything he represents - all the good values at this club.
"It's not my decision in the end, but if he keeps performing as he did today he'll be actually very close to getting that call up to the national side.
"I don't like to talk about what I've done in his game. It's an overall group of people who are helping to make this club better.
"I want to thank him for his kind words about, but there's a structure at this club to help everyone improve and that goes from the chairman to the cleaning lady.
"The one person who deserves all the praise for his improvement is the player himself. His performance has been amazing over the last few games."
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