In a statement, the London club in the Premier League announced that Villas-Boas, 33, signed for three years to replace the Italian engineer Carlo Ancelotti, who was fired last month.
Chelsea said that Portuguese coach immediately took office, which commits its seventh and sports official since the arrival at the helm of the club’s Russian billionaire Roman Abramovich in 2003.
Tuesday, Andre Villas-Boas had announced his departure from Porto by playing his release clause, which is 15 million, set by Chelsea.
Former Deputy Jose Mourinho at Chelsea has won three trophies this season with Porto – the championship, the Portuguese Cup and the UEFA Europa League – becoming the youngest coach to win a European Cup football. It will also be the youngest coach in the Premier League.
Some commentators have compared, both by temperament as for his advocacy tactics game at Pep Guardiola, coach of FC Barcelona.
“Andrew was the candidate most notable for the job. This is one of the most talented managers of our time and has already accomplished much in a relatively short time,” said Chelsea.