Chido Obi-Martin has decided to sign for Manchester United after leaving Arsenal. The 16-year-old has left the Gunners after his contract elapsed, despite talks with manager Mikel Arteta, who tried to convince him to stay. ButObi-Martin and Arsenal had disagreements over which squad he would play in next season and money. The Nigerian-born striker who plays for Denmark’s U-17 side will now move to United. This was confirmed by football transfer expert, Fabrizio Romano, on Tuesday night. Romano wrote on X: “EXCLUSIVE: Chido Obi Martin to Man United, here we go! Talented striker leaves Arsenal a…