Alex Mann is the latest player to sign a new long-term contract with the club.
The back-row forward, who progressed through the Cardiff pathway and previously captained Wales Under-20s, has followed in the footsteps of Cam Winnett by extending his terms.
Both players were yesterday named in Wales’ squad for the Guinness Six Nations following breakthrough seasons at the Arms Park.
Mann has been virtually ever present, making 10 appearances for the Blue and Blacks and is currently top of the BKT United Rugby Championship tackle count and ‘Back in the Game’ chart, which measures the speed and efficiency players get back in a playable position after contact.
Cardiff head coach Matt Sherratt said: "Alex is another young player who has been a standout for us this year.
“We were delighted to see his form recognised with an international call up yesterday and we are delighted he has also extended his contract. It is crucial that we retain our best young players as we continue to rebuild.
“Alex has been excellent on both sides of the ball. He’s a great professional, who is hungry to improve and learn as much as possible.”
Mann, who was on the books of Cardiff City as a youngster, came right through the clubs pathway system and captained Wales Under-20s in two consecutive years.
The Aberdare man made his first team debut against Harlequins in 2021, and spent the following season with the Rags. But he stepped up this term and has not looked back.
He added: “As someone who came into the academy at 16 and progressed through the ranks, I feel really privileged to sign a new contract with the club and I’m really grateful to all of the coaches and staff who have believed in me and helped me get to this point.
“I have thoroughly enjoyed the start of the season and the way it has gone for me. Having been given the opportunity and to have people trust in me, reinforces my belief in what I can do. Now, I just want to improve each day and continue working hard with my teammates.
“To have the chance to do that with Cardiff is even more special. It is my home club and I have grown up watching great Cardiff teams and players in the past - hopefully I can follow in their footsteps.
“I am also really grateful to my family and close friends. Nothing would be possible without their support and I will always appreciate that.”