MIKEL ARTETA was furious with Pierre-Emerick Aubameyang once again after this nasty tackle on Ben White.
The Arsenal manager famously stripped the Gabon striker of the captaincy and then booted him out of his squad for disciplinary issues.
And up against his former side for the first time since that acrimonious exit nine months ago, Aubameyang certainly made his presence known.
With 27 minutes on the clock, the new Chelsea No9 went sliding in on White right in front of the away dugout.
And Arteta made no attempt to hide his feelings with an angry reaction to the referee and fourth official.