Will Jose Mourinho return be a success for Chelsea?
With Jose Mourinho's return to Chelsea now confirmed, BBC Sport's Andy Swiss looks back at the 'special one's' Blues career and asks if he can repeat his previous success at Stamford Bridge.
The Portuguese coach first joined the club in 2004 and won back-to-back Premier League titles in 2005 and 2006. He left to join Inter Milan in 2008 and won two Serie A titles and the Champions League before taking over as Real Madrid boss in 2010.
Mourinho guided Real to the Spanish Cup in 2011 and La Liga title last season, and signed off from his three-year spell at the club on Saturday with a 4-2 win over Osasuna.