Gareth Southgate has just announced his England squad for the upcoming friendly games, with Manchester United’s Kobbie Mainoo missing out. Here’s why. Southgate was tasked with picking his England side for the upcoming friendly games against Belgium and Brazil. He decided to include Marcus Rashford and Harry Maguire – but left out academy graduate turned first-team superstar, Kobbie Mainoo. He explained why in his press conference. READ MORE: Who is Kobbie Mainoo? Inside the life of Man Utd’s rising star, including his parents, brother and school Gareth Southgate explains why Kobbie Mainoo isn…