Getty ImagesJamie SpencerWonderkid Chido Obi-Martin sends out message after finally sealing Man Utd move following summer exit from ArsenalManchester UnitedArsenalPremier LeagueTransfersFormer Arsenal academy prodigy Chido Obi-Martin has confirmed his move to Manchester United on social media.Article continues belowArticle continues belowArticle continues belowObi-Martin reacts to Man Utd signingTeenage star seen inking contractSet goalscoring records at ArsenalFollow GOAL on WhatsApp! 🟢📱Article continues below