Arsenal winger Gabriel Martinelli has admitted there is a player who no longer plays for the club that he really admires. The summer transfer window may open for business, but Mikel Arteta will also have his eyes on the numerous Arsenal players currently away on international duty. Playing across both the Euros and the Copa America, Arsenal have a number of players who they’ll be hoping to see return to the Emirates unscathed later this summer. Gabriel Martinelli is one of those players as he currently represents Brazil at this summer’s Copa America. And the 23-year-old has now been speaking a…