Chelsea have completing the signing of Saul Niguez from Atletico Madrid on a season-long loan deal with option to buy next summer.
The 26-year-old midfielder become Chelsea’s third summer signing following the arrival of third-choice goalkeeper Marcus Bettinelli from Fulham and the club-record purchase of Inter Milan striker Romelu Lukaku.
Saul, who made breakthrough into first-team as a 17-year-old in 2012 established himself as one of the pivotal player under Diego Someone, made 342 appearances, scored 42 goals with additional of 22 assists for Atletico Madrid.
As well as winning La Liga last season, Saul also won two Europa League titles and the Copa del Rey during his time with Atletico Madrid.
Chelsea, meanwhile, will pay a £3.4m (€4m) loan fee and will have the option to buy the Spain international for £30m (€35m) next summer.
On signing for the Blues, the 26-year-old told the club’s official website: ‘I am very excited to start this new challenge with Chelsea. Blues fans, I am one of you now and I can’t wait to wear the shirt, start training and see all of you. See you soon!’
Chelsea director Marina Granovskaia added: ‘We welcome Saul to the Club and believe he completes our squad as we compete for honours in five different competitions this season.
‘He is a proven winner, a player with huge experience and we know he will be very well-suited to the challenges that face us on all fronts in the coming year.’
However, the Blues were unable to complete the signing of Sevilla defender Jules Kounde after the La Liga side placed a price tag of close to €80m (£68.7m) on the France international.
Kounde was keen to join Chelsea, but the European champions did not up their offer from around €50m (£42.9m).
Romelu Lukaku – Inter (£97.5m)
Marcus Bettinelli – Fulham (Free)
Saul Niguez – Atletico Madrid (Loan)
Victor Moses – Spartak Moscow (£4.3m)
Izzy Brown – Preston (Free)
Luke McCormick – AFC Wimbledon (Free)
Olivier Giroud – Milan
Marc Guehi – Crystal Palace (£18m)
Lewis Bate – Leeds (£1.5m)
Myles Peart-Harris – Brentford
Dynel Simeu – Southampton (£1.5m)
Valentino Livramento – Southampton (£5m)
Tammy Abraham – Roma (£34m)
Davide Zappacosta – Atalanta (£8m)
Kurt Zouma – West Ham (£29.8m)
Jamie Cumming – Gillingham (Loan)
Emerson – Lyon (Loan)
Matt Miazga – Alaves (Loan)
Dujon Sterling – Blackpool (Loan)
Henry Lawrence – AFC Wimbledon (Loan)
Ian Maatsen – Coventry (Loan)
Baba Raham – Reading (Loan)
Juan Castillo – Birmingham (Loan)
Tiemoue Bakayoko – Milan (Loan)
Conor Callagher – Crystal Palace (Loan)
Billy Gilmour – Norwich (Loan)
Willy Caballero – Released
Jamal Blackman – Released