By Jamie Spencer New Real Madrid forward Endrick has been handed the biggest indicator yet that he is the future of Brazil’s attack thanks to his assigned shirt number for this summer’s Copa America. Endrick won’t turn 18 until a week after the Copa America final and has only made four senior appearances for Brazil to date – none of which have been as a starter. But he will wear the Selecao’s legendary number nine shirt at the tournament, following in the footsteps of icons of the past like Ronaldo and 1970 World Cup winner Tostao. Gabriel Jesus, who wore the shirt at the last two Copa America…