#1 Stopping Eriksen as much as possible

Over the past few years, Arsenal teams have never come up with a proper plan to keep Christian Eriksen silent throughout the 90 minutes. This is something that has cost them a lot in the past.
Earlier this season at the Emirates, it was Eriksen's freekick that caused havoc in Arsenal's penalty box as Aubameyang's opener was cancelled in minutes by Dier's headed effort. After a few minutes, it was the Danish International who again who played a killer through ball for Son to chase to which led to a penalty for Spurs.
Eriksen is someone who pulls the strings for Tottenham every time. His vision and creativity on the ball are second to none. Unai Emery has to come up with an effective plan in order to stop him. Arsenal needs to have a midfielder sticking close to Eriksen and making him ineffective in the game. The lesser Eriksen touches the ball, the better for the away side.