Wolves today announced that defender Christophe Berra wants to quit Molineux and has been placed on the transfer list at his own request.

The 26-year-old centre-back has told club officials he wants a "fresh challenge" and his name has been circulated to clubs.

Berra is one of the six players into the last year of their contracts along with Ronald Zubar, Michael Kightly, Nenad Milijas, Stephen Hunt and Sylvan Ebanks-Blake.

And following talks with manager Stale Solbakken and chief executive Jez Moxey, the Scotland international has decided to try to force a move away from Molineux now rather than wait until he can secure a free transfer in 10 months' time, despite tentative talks on the offer of a new deal.

It is understood Berra's agent has been looking for a club for his client for some time without any luck, and the hope is that the publicity generated by going on the transfer list could trigger interest.

Berra joined Wolves from Hearts for £2.3m in February 2009, and, given his age and experience, the club are likely to seek a similar amount for him.

He has made 111 League appearances for Wolves, 96 of which came in the Premier League, making him the second only to Matt Jarvis for most top-flight games for the club over the last three years.

Berra's wish to leave will only harden Solbakken's desire to bring in another central defender, as the Scot is one of only four centre-backs with Roger Johnson, Richard Stearman and youngster Danny Batth.

Wolves missed out on Real Sociedad's Norway international defender Vadim Demidov after he chose a better financial package at Eintracht Frankfurt.

But they retain a long-standing interest in Manchester City's Montenegro international Stefan Savic, who could be available on a season-long loan.