It’s nearly a year to the day since Manchester United gave Luke Shaw a new contract, tying him at the club until June 2023 with an option of a further year. When he penned the extension he stood alongside Jose Mourinho who, after two years of harsh treatment, was getting the best from the England international. Shaw’s form for Manchester United has, however, been poor ever since that moment. He’s solid enough defensively but doesn’t embrace the attacking side of the game in the same ways club stalwarts Denis Irwin and Patrice Evra did under Sir Alex Ferguson. And Goal claim there is concern at United that Shaw lacks the mindset to take his game to the next level. The 24-year-old has struggled for consistency ever since arriving from Southampton over five years ago. In his first year of the club, he was often dropped by Louis van Gaal who was unhappy with his physique. He won round the Dutchman in his second campaign at Old Trafford – but a horror injury sustained against PSV Eindhoven ended his season. By the time he returned to action, Mourinho was at the helm. But it took him two years to earn the…