Arsenal have signed full-back Mathieu Debuchy from Newcastle, while the Magpies sealed Daryl Janmaat switch from Feyenoord as Debuchy’s replacement.
Debuchy, who was part of the French World Cup squad which reached the World Cup quarter-finals, will present a ready-made Premier League replacement for Bacary Sagna, who earlier this summer left Arsenal to join Manchester City on a free transfer.
The 28-year-old, who has cost the Gunners around £12million, becomes Arsenal's second signing of the summer, following the arrival of Alexis Sanchez from Barcelona.
Newcastle confirmed 24-year-old Holland international Janmaat's arrival and Debuchy’s departure for the Emirates Stadium.
It is believed the Magpies invested around half of the Debuchy fee in his replacement.