The Scarlets star is set to win his first cap against America in Hartford tonight as Mefin Davies and Robin McBryde both struggle with injuries. And Rees believes in the long term he can fill his former and current team-mates boots.
"Mike Ruddock has picked a young squad and given us a chance to prove what we can do," said the 24-year-old from Tonyrefail. "Mefin's been superb and helped me all the way since my selection.
"I respect him as a person and as a player, as I do Robin McBryde. But Mefin's 32 now and Robin's 35 so, in the longer term, the Wales jersey's there to be taken."
Rees is relishing the prospect of testing his skills on the international stage and is aware that Wales must be at their best to beat a dangerous Eagles team.
"The USA will be direct and in our faces and have excellent key players like Kort Schubert and Mike Hercus," added Rees. "They're a threatening side, but we have to put the fire out before it starts."
WRU Chief Executive Roger Lewis, Deputy Minister for Culture, Sport and Tourism Ken Skates and WRU Chairman Gareth Davies earlier this week launched a new competition in conjunction with the WRU unveiling its archive room.
Welsh players and management joined Deputy Minister for Sport Ken Skates at the Pierhead Building, Cardiff Bay earlier this week to reveal the Union's pioneering school-club hub initiative has been so successful the project will now almost double the scale of the original project.
The Scarlets, Newport Gwent Dragons, Cardiff Blues and the Ospreys look ahead to Judgement Day III which sees the Blues take on the Ospreys (2.30) and the Dragons tackle the Scarlets (4.45pm) at the Millennium Stadium tomorrow afternoon.
Ystradgynlais and Ynysddu played out a titanic struggle at Taffs Well in the SSE SWALEC Bowl semi-final. At the end of the game neither team could be separated after a 15-15 stalemate but Ystradgynlais go through on try count.
Blues strike first in JD III battle - Newport Gwent Dragons lock Andrew Coombs, WRU referee Dylan Llyr Jones and Cardiff Blues hooker Matthew Rees decide dressing room allocations for Judgement Day III
Wales Under 18 captain Calum Haggett has received a conditional offer to read Biomedical Science at St Anne's College, Oxford. WRU chairman Gareth Davies went to meet Calum and Coleg y Cymoedd Principal Judith Evans to wish him luck in his exams and pass on some of his personal experience.
Dodgy tattoos, carthorses, Avatar and soft chins are revealed by Wales Sevens players Tom Williams and Sam Cross as they profile the Wales Sevens squad taking part in Hong Kong this weekend in the latest round of the HSBC Sevens World Series.