Arsenal have now been told that they should push to sign one player who is even better than Gabriel Martinelli. Gabriel Martinelli endured a difficult season for Arsenal last time out. The Brazilian winger slipped down the pecking order in the second half of the campaign, as Leandro Trossard’s form demanded that he be granted a regular starting berth. Meanwhile, Martinelli ended the campaign having racked up 8 goals and 5 assists in 44 outings, across all competitions. This represents a significant drop off from the figures he posted in the previous season, when he recorded 15 goals and 6 assi…