Tom Curry will make his first appearance for the British and Irish Lions while Ireland's Iain Henderson will be captain against the Sharks in Johannesburg on Wednesday.
Here, we run down five things you may not know about the 23-year-old England and Sale Sharks back-rower.
TOM CURRY FACTS:
1. Rugby family
They are the son of Bishop Heber High School Head Teacher David Curry and nephew of former England hooker John Olver and cousin of Doncaster Knights fly-half Sam Olver.
2. Football trial
It is true that they had a trial at Manchester City, who the twins support, but that was scuppered by Tom scoring an own goal. Probably for the best in the end.
3. Record-breaker
Tom made his professional debut against Scarlets on 15 October 2016 in the European Champions Cup, becoming the fourth-youngest English player and youngest Sale Sharks player to have played in the competition.
4. How to tell them apart?
The only way you can tell them apart is by their hair. Tom has his styled to the right while Ben has his swept to the left.
5. National League routes
The duo played for Sale FC in National 2 League North before making their debut for Sale Sharks in the Gallagher Premiership.
