LONDON (AFP) ??” Jose Mourinho.

LONDON (AFP) ??” Jose Mourinho, who guided Porto to Champions League glory this season, said he was looking forward to a "fantastic challenge" after being unveiled as Chelsea's just discovered manager on a three-year contract.

The 41-year-old has replaced Claudio Ranieri who was sacked upon Monday.

Mourinho was released by way of Porto on Tuesday, less than a week after leading the Portuguese champions to victory in the Champions League final against Monaco.

"Chelsea describe a fantastic challenge for me It is a great society with a world-class squad of players," he said.

"The plans and ambitions for Chelsea excite me and I am confident they will do the same for the fans whose incredible support I have already witnessed.

"The English Premiership is recognised as the best league in the world and I am really excited at the calculation of competing week in, week abroad at the highest ...