David Luiz has completed a shock move from Chelsea to Arsenal in an £8 million ($10m) deal.
The Brazil international will sign a two-year deal at the Emirates Stadium and is their second defensive signing on deadline day, joining Kieran Tierney as a new face in the Gunners backline.
The north London side have made a third addition defensively, signing William Saliba from Saint-Etienne, but sent the 18-year-old straight back to the French club on loan for the 2019-20 season.
David Luiz may be at the other end of his career from Saliba, but has lots of Premier League experience, racking up 160 appearances in the league for Chelsea over two spells at Stamford Bridge.
And Arsenal manager Unai Emery welcomed his new charge to the club, highlighting that experience.