Aston Villa have signed defender Calum Chambers from Arsenal on a three-and-a half-year contract.
The 27-year-old, who joined the Gunners from Southampton in 2014, has only made five appearances for the London side this season.
He is Villa's third January signing following the arrivals of Philippe Coutinho on loan from Barcelona and Lucas Digne from Everton for £25m.
"It's a massive club and they're in a great moment," said Chambers.
"It's a very exciting place to be and everyone can see that from the outside. Things are happening here and it's definitely moving in the right direction.