LONDON — English Premier League side Chelsea confirmed Wednesday that Andre Villas-Boas will be the club’s new manager.

A statement on the club’s official website said that the 33-year-old former Porto manager signed a three-year contract and would start work immediately.

The statement added, “Andre was the outstanding candidate for the job. He is one of the most talented young managers in football today and has already achieved much in a relatively short space of time. His ambition, drive and determination matches that of Chelsea, and we are confident Andre’s leadership of the team will result in greater successes in major domestic and European competitions.”

It added, “Andre will bring his coaching experience back to a club he is already very familiar with, having previously worked here for three years. He has always been highly regarded at Chelsea, and everyone here looks forward to welcoming him back and working with him.”