A statement signing for Saudi-backed Newcastle United.
England star Kieran Trippier will now play at St James' Park after signing a £12million ($16.2M) deal to leave Atletico Madrid.
The deal is the first of what is expected to be a busy January transfer window, with new boss Eddie Howe desperate for reinforcements in a bid avoid relegation from the Premier League.
The club's new owners have given Howe their backing this window and have made a statement signing in landing right-back Trippier from LaLiga champions Atletico on a two-and-a-half-year contract.
Trippier told the club's official website: "I'm delighted to be joining this fantastic club. I really enjoyed my time in Madrid, but when I became aware of interest from Newcastle United, and having worked with Eddie Howe before, I knew this was where I wanted to be."
Howe added: "I am really pleased to welcome Kieran to Newcastle United. I have long admired his abilities and have followed his career, so when the opportunity arose to secure him, we didn't hesitate."
Trippier touched down on Tyneside on Wednesday afternoon and went to the club's training ground to undergo a medical.
The former Spurs defender was apparently drawn by the prospect of working with Howe, who first signed him for Burnley nearly 10 years ago.
With 35 international caps, and a key member of Gareth Southgate's squad that reached the Euro 2020 final last year, the Trippier signing is a key signing of intent from Newcastle's owners.
Other priorities Newcastle will now focus on will include new center backs, with Lille's Sven Botman still a top target. Other defenders and one or two strikers will be needed before the window shuts as well in order to bolster the side.
The Magpies are currently 19th in the Premier League table, two points off Watford in 17th, having won just one league game this season.