Arsenal lost Laurent Koscielny and Nacho Monreal in the summer and replaced them with David Luiz and Kieran Tierney in the same window.
The Gunners also agreed a deal for William Saliba, who will spend this campaign on loan at Saint-Étienne.
Last month, reports coming out of Germany explained the Europa League runners-up wanted to sign RB Leipzig’s Dayot Upamecano.
Wednesday’s edition of Sport Bild now explains Barcelona and English clubs are interested in the 21-year-old and then they talk about the north London club, whose €60m bid was turned down in the last window.
The centre-back’s contract with his current employer runs down in 2021 and has a release clause of €80m. It’s reported Leipzig want to get rid of the buyout clause, which is why they want to offer him a new deal. 
Kicker earlier explained the player’s release clause will drop down to €60m next summer and this has also been reported by L’Equipe in France.
