The reverse Championship 1 fixture at Neath will be Roets’ return to the Scorpions after playing in their first two seasons between 2009 and 2010.
He said: “We all want a place in the Wales side in the autumn and we’re all determined to play well so I think this should encourage a lot of people to come and watch.
“It is a Welsh derby and that’s a big game. Both teams haven’t had the season that they want but this is in its own elite final. It’s going to be a good game, very intense and quite an atmosphere.”
Roets was absent for the Crusaders in the first Welsh derby in over a century due to injury. However he is anxious to play in this weekend’s match and prove himself in front of the Welsh crowd.
He said: “There have been a lot of uphill struggles for me and my injuries this year but I’ve got through them.
“Although I’m still not 100 per cent fitness wise as I’ve been out for a while, I’m looking forward to competing, especially with more Wales internationals coming up later this year.”