A Sky Sports journalist claims there is ‘concrete interest’ from the Premier League in a manager Tim Steidten wanted at West Ham. Speculation continues to swirl over the future of Julen Lopetegui at West Ham. In the last two weeks Graham Potter, Edin Terzic and Jose Mourinho have all been linked with the Hammers. A dismal 3-0 defeat to Forest last time out has turned up the heat on Lopetegui. Now the Spaniard faces a huge game in the Premier League at home to Everton with his job potentially on the line. There have been conflicting claims about whether West Ham must beat the Toffees to save Lo…