One Prem start was enough for the teenage sensation to gain a spot in Borthwick’s squad.
Five tries against Sale Sharks on his first Prem start was as big of an impact as you can hope to make.
The 19-year-old Saracens wing is a potential new star of English rugby and was immediately brought into the England training camp as a development player.
He clearly impressed and was picked ahead of in-form Leicester Tiger Adam Radwan in the final squad for the four Tests.
Caluori’s point of difference – his ability in the air – has earned him rave reviews from players and pundits.
The way 6ft 4in Caluori can hang high and take a ball over his head could prove a powerful weapon on the biggest stage, but he also has pace and power in abundance, twice leaving George Ford flailing at thin air as he motored past him.
“His raw athleticism is unreal,” former England wing Ugo Monye told BBC’s Rugby Union Weekly.
“The law changes with escorting has removed the protection for the catcher, so we are now seeing the most proficient and athletic guys in the air, which is being celebrated.”
Borthwick has two years until the World Cup and it is clear he wants to fast-track Caluori’s development.
England’s opposition this autumn – Australia, Fiji, New Zealand and Argentina – are all teams who made the quarter-finals of the last World Cup.
The easiest fixture on paper is against Fiji on 8 November, but could Caluori be set for more than just a brief run-out this autumn?
“I know we’ve got good wingers and Immanuel Feyi-Waboso and Tommy Freeman will probably start, but he [Caluori] is not too far away,” former England wing Chris Ashton added.
“It would not be an issue if he did play as he has been that good. Every bit of his game is worthy of a cap.”
