They are brothers and have played side by side, from mini-rugby to school. But this weekend, Anthony and Edward Haynes get their first chance to play together on the biggest stage of all.
'He used to be the fly-half and I was inside centre, side by side, when we played for West Island School but that was almost four years ago,' smiled 21-year-old Ant Haynes (as he is familiarly known). 'This will be the first time I get to play with him at the Sevens, although we won't be exactly next to each other.'
That is because the 90-kilogram Ant (left in picture with brother Ed) will play as hooker, while Ed, the elder by 20 months, will stick to the backs. It will be Ant's fourth Sevens, while Ed will be making his debut. Oh, and Ant is also the captain. The absence of the injured Mark Wright (who led Hong Kong last year as well as at the Asian Games) and Jeff Wong Chun-kiu (skipper at the Rugby World Cup Sevens and East Asian Games, both in 2009) has paved the way for the younger Haynes to accept the responsibility.
'It is a huge honour for me and a proud moment for my family,' said Ant. 'It will be extra-special because I will have my brother playing with me for the first time.'
The selectors and head coach Dai Rees could have played safe and given the captaincy to Simon Leung Ho-yam, skipper of the 15s team who has also captained at sevens, or they could have plumped for two of the most experienced players in Rowan Varty or Keith Robertson.
But at 21, it was felt Ant Haynes had the edge over the others - at least three to four years in the case of Robertson and Varty - in youth and time to develop as Hong Kong look ambitiously towards qualifying for the Olympic Games in 2016.
Five years from now, he will be in his prime and, as he has committed himself to the game for the next few years, it was thought he was the best captaincy material.