Porto coach Vitor Pereira doesn't believe Andre Villas-Boas will feel undermined at Chelsea by Jose Mourinho.
It's been revealed Chelsea players are still texting the Real Madrid coach.
But Pereira said: "I consider it normal. After working with the players it is natural to create bonds of friendship. Me and Andre (Villas-Boas) also exchange messages, because we are friends.
"It is a natural thing that happens."