Gary Lineker has described Kobbie Mainoo’s impact at Manchester United as ‘remarkable’ while tipping the Premier League wonderkid to earn a place in Gareth Southgate’s England squad for the European Championships. From the very first minute he stepped onto the pitch in a Manchester United shirt – his league debut coming at the end of November away to Everton – Kobbie Mainoo has looked like a teenager playing an entirely different game to some of his far more experienced team-mates. As Casemiro and Bruno Fernandes treat the ball like a bomb, chucking it up the field with reckless abandon, Maino…