The club’s pursuit of Chelsea‘s Luiz arose late on in the window with the veteran centre-back training separately from the remainder of the first-team squad yesterday.
The Brazilian is believed to have a rift with Frank Lampard and negotiations between Chelsea and Arsenal were concluded quickly with Luiz having fallen behind Andreas Christensen and Kurt Zouma in the pecking order at the club.
Earlier bids for RB Leipzig's Dayot Upamecano and Juventus' Daniele Rugani were both rejected causing Arsenal to turn to the 32-year-old.
The protracted saga of negotiations between Arsenal and Celtic finally met a resolution last night as the Gunners proposed an acceptable instalment structure for the £25m fee.
The left-back is currently undergoing a medical at the club alongside Luiz with personal terms agreed for a five-year contract.
Everton had a £30m bid rejected for the academy graduate yesterday and are yet to come back with another offer, despite seemingly resigning to missing out on Wilfried Zaha.
The 20-year-old striker replaces Kemar Roofe who left Leeds for Anderlecht earlier this week.
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