Mauricio Pochettino is back in the Premier League.
The former Espanyol, Southampton, Tottenham and Paris St-Germain manager will be the Chelsea boss next season for his third spell in charge of an English club.
He becomes owner Todd Boehly's third permanent boss in the 12 months since he took control of the club - and his fourth appointment, counting interim coaches Bruno Saltor and Frank Lampard.
The Argentine arrives at Stamford Bridge after a season of turmoil for the Blues, who have spent £600m since the takeover.
But what Pochettino are the Blues getting? And why has the 51-year-old decided now is the time to return - to a club seemingly in a mess - after almost a year out of the game?