Staff at Arsenal are all in agreement when it comes to one thing about the future of Gabriel Martinelli after his difficult season. Arsenal winger Gabriel Martinelli is currently representing Brazil at the Copa America, who will get their tournament campaign underway against Costa Rica tomorrow. The forward is joined in the national team squad by Arsenal teammate Gabriel Magalhaes, whilst Gabriel Jesus was not called up to feature in the competition. Martinelli will be desperate to impress for his country, whilst Mikel Arteta will be hoping that the 23-year-old can rediscover his best form and…