#4 Reiss Nelson

Integrating Reiss Nelson into the Arsenal first team next season should be a priority and every Arsenal fan knows just how good he is and what he is capable of. Arsenal lacked wingers last season and having Nelson in the team would have definitely made things easier for Alex Iwobi and Henrikh Mkhitaryan. Additionally, players like Ozil and Aubameyang wouldn't have had to play out of position all the time.
However, his loan spell at Hoffenheim did make sense and there is no denying it made him a much better player and in the long run this will certainly benefit Arsenal. Nelson made a total of 31 appearances for Hoffenheim and scored 8 goals and assisted 1. By the end of the season, he was one of the best rookies in the Bundesliga last season.
Arsenal is set to face another long and tiring season and Nelson's experience will certainly come in hand as Emery looks to improve on this season Europa League final defeat and a 5th place finish.
Arsenal will face a difficult transfer window having failed to qualify for the Champions League and with a number of talented youngsters waiting in line for a first-team opportunity, Emery needs to give these players a chance as he looks to rebuild Arsenal.