Making his Test debut, Pollock scored two of England's 10 tries as they finally put an opponent on the canvas and kept them there.
Pollock, described as a pest in training by skipper Maro Itoje, is a certainty to tour with England this summer and could even be involved in the Lions conversation.
And his Saints team-mate Freeman said: “He's a joke. He's unbelievable. He brings the sort of energy like you've never seen before for a 20-year-old.
“I remember my first game I was shaking in the corner, all nervous but nothing fazes him.
“On Friday night he was in my room telling me about he was going to get his first try on the wing - and then he got it. He was doing the try celebrati...