The Bolton manager said that he was assured of the former Porto boss’s quality when they underwent their UEFA coaching licence course together.
"Villas-Boas is a tremendous addition to the Premier League. I know him well. I did my pro-licence with him and really took to him," PA quotes the 45-year-old as saying.
"He is a fantastic manager, who has achieved such a lot at such a young age. He has so many attributes. He will be a great fit with Chelsea. There is no doubt he will be a huge success.”
At 33, Villas-Boas is the youngest manager in the Premiership.