Cardo joined Crystal Palace at the age of 15, and played for their Academy and Under 21 teams. He also played for the Palace first team in friendly matches against Liverpool and Manchester United and made his full debut for them in the EFL Trophy against Swindon. He has also represented Iraq twice at under 23 level.

Cardo, a 6ft 2" left footed centre back, unfortunately suffered a hamstring injury in 2022, and he was released at the end of the 2022-23 season. He has training with the Quakers for several weeks before signing a deal until the end of the season in December 2023.

Manager Josh Gowling said: "He's been with us in training for a couple of weeks, and he's looked good.

"He had a promising career ahead of him before he was injured, and hopefully we'll get him back on the right track. He'll be good for us when he's properly match fit."