Manchester United’s hopes of luring Mathys Tel to the Premier League have suddenly suffered a major blow with Bayern Munich’s new sporting director expressing his desire to retain the Bundesliga starlet. It is nearly two weeks since reports emerged suggesting that Manchester United had made contact with Mathys Tel’s camp, having ‘intensively analysed’ the £17 million teenager and installing him as one of their leading summer targets ahead of Bologna’s Joshua Zirkzee. Since then, a deal which felt ‘possible’ at the time appears to have become, well, a little more ‘improbable’. Manchester United…