Atletico Madrid have confirmed the loan signing of midfielder Alvaro Morata from Chelsea until the end of next season.
The 26-year-old has completed the deal with Atletico after passing a medical in the Spanish capital on Sunday.
Morata told Atletico's official website: "I'm very happy and proud to be here. I can't wait to start training, meet my new teammates and play."
Morata started his career at Atletico's academy before moving on to have two spells with city rivals Real.
He joined Chelsea for a reported £58 million in 2017 and made an impressive start in the Premier League.
But Morata has found his opportunities increasingly limited since the arrival of new Blues boss Maurizio Sarri.