After the departure of long-serving full back Bacary Sagna to Manchester City, Gunners boss Arsene Wenger simply had to bring in a replacement. Toulouse's Ivorian international Serge Aurier had long been suggested as the player who would arrive in North London, but a move to sign Debuchy from Premier League rivals Newcastle has really accelerated over the past week.
An £8m deal is drawing ever closer for the 28-year-old, and the expectation was that the former Lille man would provide four or five years of service at right back before one of Carl Jenkinson on Hector Bellerin developed enough to take over – but that could be some way off the truth.
Reports this morning suggested that Atletico Madrid right back Javier Manquillo was stalling on a proposed move to French side Marseille in order to try and complete a move to Arsenal this summer. The 20-year-old is a highly rated Spanish youth international, but has made just six first team starts - leading to reports that he would leave the club for Marseille.
Yet whilst a season-long loan deal appeared to be close to completion, the transfer is on the verge of collapse after Manquillo heard that Arsenal were stepping up their interest in him.
Arsenal's interest in Manquillo could mean one of many things. The most likely is that Manquillo is seen as the long-term successor to Debuchy, and Jenkinson will either be sold or loaned out upon their arrivals. Alternatively, Arsenal could buy Manquillo and loan him straight out, as Chelsea have done with many young players recently - or there could be an issue with the Debuchy deal.
Signing one right back was almost a given for Arsenal this summer, but signing two seems particularly bizarre. Given Wenger's track record with young players, you can be assured that there is a plan in place, but adding Manquillo as well as Debuchy would certainly be a surprise to most.