Four big names are set to follow Anthony Martial by renewing their Manchester United contracts. This is according to the Daily Mirror, who claim David de Gea, Ander Herrera, Juan Mata and Ashley Young will also put pen to paper on new deals with the club. Getting De Gea to sign a new deal is a big one and will relieve fans. The best goalkeeper in the world could be elsewhere winning league titles and European Cups, but he’s always…