Arsenal are no strangers to seismic transfer targets. They're not even strangers to the idea of landing a huge players from Real Madrid.
Mesut Ozil proved that when he became the Gunners' record signing from Los Blancos in 2013 for a whopping £42.5 million: but he was of an age when Arsenal were regularly linked with Karim Benzema and Sami Khedira. The Gunners were credited with more than a passing interest in Kylian Mbappe when he exploded onto the scene; Luis Suarez's release clause was even triggered.
