Bringing Ruud van Nistelrooy back as a coach is already paying off as he plays a key role in Manchester United signing Chido Obi-Martin. This summer has already seen Manchester United sign two very exciting players in Leny Yoro and Joshua Zirkzee, but Chido Obi-Martin has the potential to surpass both. Chido Obi is a phenomenal talent and he’ll now be plying his trade for the Red Devils at Carrington next season, with the level he plays at yet to be defined. READ MORE: Who is Chido Obi-Martin? The ex-Arsenal academy superstar who could make Manchester United moveThe 16-year-old is one of the n…