HITC Sport understands that the Dutchman was Chelsea's first choice as interim boss but they also contacted Roberto Di Matteo
HITC Sport has learnt that Hiddink and Di Matteo were both contacted by Chelsea this week, whilst others such as former Spurs boss Juande Ramos were approached through intermediaries.
But once Chelsea had decided to part ways with Mourinho, they were set on either Hiddink or Di Matteo, who are both thought of very highly following their previous spells with the club and seen as ideal to take the club through to the summer- when the Blues will appoint a permanent successor to Mourinho.
69-year-old Hiddink previously took control midway through the 2008-09 season replacing Felipe Luiz Scolari and guided them to a FA Cup final win. Now after an ill-fated spell in charge of Holland, he is set to return to Stamford Bridge.
Chelsea have opted for Hiddink after also approaching former boss Di Matteo - who famously took them to European glory when he won the Champions League with them in 2012.
He landed the job on a permanent basis but was replaced by Rafa Benitez, but despite being sacked he remained close to the club and highly respected, and one reason why Roman Abramovich wanted him spoken to as well as Hiddink.
The 45-year-old, like Hiddink, is currently out of work after leaving German side Schalke earlier this year.