Birmingham reject £6 million bid from Southampton for goalkeeper Jack Butland Southampton returned with a second offer for Butland earlier this week but Birmingham are determined to keep the teenager, who is still yet to make a first-team appearance for the club. Butland was called into Roy Hodgson's Euro 2012 squad after John Ruddy's finger injury and is expected to be Stuart Pearce's No 1 for Team GB after Birmingham allowed him permission to play at London 2012. Pearce has already given him his debut for the England under-21s. And Birmingham's new manager Lee Clark, who was officially unveiled at St. Andrew's on Wednesday, also wants him as his first-choice goalkeeper for the forthcoming season, with Ben Foster poised for a £4m move to West Bromwich Albion. But the Championship club are preparing for further interest this summer and are ready to demand at least £10m for the 19 year-old. Southampton have been monitoring Butland for the past 18 months and are keen to sign him as they prepare for the Premier League, while Manchester City, Tottenham Hotspur and Norwich are also believed to be interested. Butland's only experience of club football has been in two loan spells in League Two with Cheltenham but his reputation is already impressive and will only be enhanced when he appears at the Olympics. Clark, however, has insisted he will not be sold this summer unless Birmingham receive a "crazy" offer. He said: "I know how good Jack Butland is and I think he can push Joe Hart all the way to be the England number 1. It's a great kudos for the club for him to be going to the Olympics, we are all proud and hope he comes back super-confident. Playing at the Olympics will put him in the shop window but you can't hide good players. It will have to be big numbers for us to even consider selling him. As far as I'm concerned he will start the season here. Clark is also facing a battle to retain Dave Watson, Birmingham's highly-rated goalkeeping coach. Watson, who was part of Hodgson's coaching team at Euro 2012, is on a rolling contract and is being eyed by former manager Chris Hughton at Norwich. But Clark is keen for Birmingham's board to offer him an improved deal, while negotiations have also started with Stephen Carr, the former Republic of Ireland international defender, over a new contract. Birmingham are confident the Football League will lift their transfer embargo before the start of the season. The embargo was imposed after the club filed their accounts late but Clark expects the green light shortly. He said: "Everybody behind the scenes is very positive about it. It's a work in progress but I know they've been to the powers-that-be to put the case forward and things went very well there.