his debut for the side on 12 February 2008 in a 1–0 defeat to Yeovil Town and, after establishing himself in the first team, he signed a new contract in April 2008 to keep him at the club until the end of the 2008–09 season. The contract included a release clause allowing him to discuss a transfer to any club offering a particular fee to Northampton Town. Cardiff City On 19 August 2008, Gyepes completed a move to Football League Championship side Cardiff City, as a replacement for Glenn Loovens who had completed a move to Celtic several days before, after they offered the required amount to trigger the clause, thought to be in the region of £200,000. He made his debut for the club on 25 October when he came on as a substitute to replace captain Darren Purse during a 1–0 win over Nottingham Forest. After a poor defensive performance during a 2–1 defeat to Plymouth Argyle in November manager Dave Jones made several changes to the side, including handing Gyepes his first start in place of club captain Darren Purse in a 2–2 draw with Reading. After settling in the first team, including being named in the Championship team of the week for the first week of December, Gyepes scored his first goal for the Bluebirds with the second goal in the 2–1 win over Ipswich Town. After making over 21 appearances during the season, he signed a new three-year deal at Cardiff after activating a clause in his contract. The start of the 2009–10 season saw Gyepes relegated to the bench behind new signings Mark Hudson and Anthony Gerrard, his only appearances in the opening three months of the season coming in the Football League Cup. He made his first league appearance of the season on 21 November 2009 in a 1–0 defeat against Barnsley, in place of the injured Anthony Gerrard. After a long spell in the team he scored his 3rd goal for the Bluebirds as he aims to stay in the team until the end of the season. During the 2010–11 season, Gyepes started in the defense after giving Anthony Gerrard to Hull City on loan but however was dropped for January signing Dekel Keinan, then in March, Hudson suffered an injury keeping him out for the majority of the remainder of the season, but Kevin McNaughton was chosen to partner Keinan in