The London rivalry has moved from being fiercely contested on the pitch to off it. Arsenal vs Chelsea hasn't been an even contest for many years - though the Gunners often came out on top when the pair went head-to-head despite the deficit in the table - but it has become quite the battlefield in the transfer market.
The Gunners have been stung by Todd Boehly's loud, older brother-style steal of Mykhailo Mudryk, leaving Mikel Arteta licking his wounds and, ironically, turning to a previous Chelsea target Leandro Trossard in response. That isn't the end of things either.
Declan Rice has been seen as a Chelsea player in waiting for several years but Edu and Arteta are all of a sudden in that mix now due to their enhanced on-field reputation and the likeliness of Champions League football. As for Chelsea, their attention has been turned towards other areas and new targets.