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."
The last five years have been an emotional rollercoaster on and off the pitch for RGC1404. Promotion to the Principality Premiership was the culmination of five years of hard work and investment in North Wales. WRU TV caught up with prop Joe Simpson, who was one of the first intake of WRU North Wales Academy players in 2010.
Ebbw Vale captain Damien Hudd picked up the biggest accolade of the night at the 11th Principality Premiership Awards Evening held at Principality Stadium, after leading his side to the title for the first time.
Wales assistant coach Robin McBryde is predicting a tough battle against England on Sunday despite the fact they may not be considered to be at full strength. Players will be out to impress Eddie Jones which makes England a dangerous proposition, he says.
Wales U20 captain Tom Phillips and performance psychologist Dr Rich Neil explain why spending three days at Monmouth RFC has further strengthened the togetherness of the squad ahead of the #WorldRugbyU20s