Andre Villas-Boas takes the Chelsea job still not on speaking terms with Jose Mourinho.
Villas-Boas is said to have fallen out with Mourinho, who himself has two European Champions League titles to his name with Porto and Inter Milan.
The former Chelsea hero has not spoken to Villas-Boas since he took charge of Porto a year ago and the pair are reportedly no longer friends.
One Portuguese sports insider told The Sun: "No one knows why they have drifted apart. But Mourinho is well known for falling out with people."
