Pochettino reiterated that Palmer is the designated penalty taker for the team and stressed the need for clarity and adherence to established roles within the squad.
"The penalty taker is Palmer. It's Palmer who needs to decide if he wants to give the ball to a team-mate. It's important to fix. They realise now," the Argentine said.
"It's a shame. It's a process for a young team who needs to learn a lot. I want to apologise to the fans. We need to be focused on the collective. It's like we are in a school, and our job is to show them they were wrong so they can learn. There will be no punishment, but this can't happen again. If Palmer is on the pitch, he is the penalty taker."