It is not just Shaw's performances that have caught the eye of his teammates. It is also his attitude.
"The confidence and matureness he has for such a young kid is unbelievable," said Lallana to the Daily Echo.
The Saints skipper added: "He's come in and done absolutely outstanding. To think he's still 17 is unbelievable.
"Credit to him, his fitness is coming on. He lasted the full game (against Liverpool), so he's showing he's making giant strides forward in his fitness.
"We all know the ability that he's got. He's unbelievable for his age."