Lamela scored one of the goals of the year in the 5-1 win over Asteras Tripolis, with a 20-yard rabona that left the opposing keeper rooted to the spot.
Sitting on the bench however, Pochettino remained unmoved to a goal that Lamela himself has called his best ever.
And justifying his stance, Pochettino joked: "I just show emotion in my house, in my bed.
"Once I made a goal in my career; if you look on YouTube!"
Pochettino did declare his overriding impression of the goal however, stating: "It was a great goal, probably one of the best I've seen."
For the big stories and the banter follow us on Twitter: @tribalfootball