The engine-room figure is said to have arrived at Heathrow Airport after being told by his club he can leave following a bust-up with manager Eduardo Berizzo, per Charles Watts of Football.London.
Per France Football (h/t Sport Witness' Tom Coast), N'Zonzi confirmed he had flown to London later on Tuesday, and while he said he didn't travel to the United Kingdom on transfer business, he also made it clear he's set to leave the club: "My future is clearly elsewhere than in Seville. The only thing that disappoints me is the manner in which this is ending."
N'Zonzi left the Estadio Sanchez Pizjuan at half-time during a UEFA Champions League group-stage clash against Liverpool on November 21, when his side were trailing 3-0.
Watts also noted N'Zonzi had been left out of Sevilla's Champions League squad for Wednesday's fixture against NK Maribor, although team-mate Clement Lenglet posted evidence on Monday to suggest he is with the team:
N'Zonzi has a £35 million release clause in his contract and will be allowed to leave Spain when that figure is met, although Sevilla could be willing to sell for less.
It's reported the player skipped training the day after the 3-3 draw against Liverpool, intensifying speculation of a potential winter exit.
ESPN FC's Dermot Corrigan recently nodded to the dim-looking future awaiting the Frenchman in Sevilla following his fallout with Berizzo, whom he is said to have accused of favouritism among certain players:
N'Zonzi not even on Sevilla bench again tonight - following row with coaching staff - looks like he's on way as soon as January / could be bargain pick-up.— Dermot Corrigan (@dermotmcorrigan) December 2, 2017
The Daily Star's Harry Howes cited a report from Spanish outlet El Gol and said Liverpool could also bid for N'Zonzi by offering misfit striker Daniel Sturridge in a partial exchange.
It seems unlikely Gunners chief Arsene Wenger would be so willing to offer players moving in the opposite direction.
The north Londoners already added one tough-tackling talisman to their side in Granit Xhaka, who arrived at Arsenal in the summer of 2016, but he isn't yet the finished article in the role of midfield general.
James Benge of the London Evening Standard recently provided quotes from Wenger, who touched upon Xhaka's hot-headed nature:
Wenger urging Xhaka to keep his cool tomorrow:— James Benge (@jamesbenge) December 1, 2017
“The big games are 100 per cent commitment, but keep always control of your nerves, focus on your job and be disciplined because most of the time it is linked with the result.”
More here https://t.co/Iv6FrLJURa pic.twitter.com/LIX6C5qSBV
Some Arsenal fans would welcome another similar presence in their midfield, and N'Zonzi has the added benefit of having already featured in the Premier League following spells at Blackburn Rovers and Stoke City.
N'Zonzi was said to have handed in a transfer request over the summer, and news of his recent trip to the English capital has only encouraged talk of a winter switch to Arsenal.