3 Arsenal players that need to improve
He tries and he tries, but Joel Campbell is struggling to grasp the superb chance he has been given in the first team.
He played well against Swansea when he bagged a goal, but his many anonymous performances of the past few weeks, and in particular against West Brom at the weekend with a glaring miss with the goal at his mercy, have shown he has a lot of work to do to stay in the first-team.
He clearly has talent and no lack of work-rate, but he has to try to impose himself in the team and demand the ball the same way he does for Costa Rica. Time is running out for him to prove he is anything but a squad players for the club.