By Felix Keith Luke Littler was wearing his rose-tinted glasses when he named a combined XI made up of Manchester United and Liverpool players. Littler is a massive United fan but unfortunately for him, his recent success in darts hasn’t been mirrored by his football club. While the 17-year-old has been busy reaching the finals of the World Championships and picking up successive wins in the Premier League, his team has been crumbling. In their last two games, United conceded injury-time goals in a 1-1 draw against Brentford and a 4-3 defeat at Chelsea to throw away five points. They host Live…