Cardiff City have signed Northampton's Hungarian international defender Gabor Gyepes to replace Glenn Loovens, who joined Celtic for £2.5m last week.
The 27-year-old signs on a two-year deal for an undisclosed fee, thought to be in the region of £200,000.
Gyepes told the club website: "I hope to play for Hungary again, but must concentrate on gaining a starting place and performing well for Cardiff."
The Bluebirds also say they are hopeful of signing a Premier League striker.
They have permission to speak to the front man - who is a current international - and are trying to finalise the move before the transfer deadline.
The Bluebirds have banked £10m from transfers this year as Loovens followed Chris Gunter and Aaron Ramsey - who left for the Premier League for £2m and £5m respectively - out of Ninian Park.
Gyepes joined Wolves in 2005 for £1m from Ferencvaros, impressing before a knee injury saw the termination of his contract by mutual agreement.
After rehabilitation back in Hungary, he joined Northampton in January this year.
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Gyepes, who will compete for the centre-back positions with Roger Johnson and club captain Darren Purse, said: "I have played at this level before with Wolves and am very excited by this new challenge.
"Cardiff is a beautiful city with a superb new stadium and I want to be part of that future.
"It is a big challenge for me and I will always give Cardiff 100 per cent commitment. I look forward to helping this club have a successful season."
Cardiff chairman Peter Ridsdale said: "We're delighted to have signed him. Before he was injured at Wolves he had a bright future at this level."