Chelsea manager Roberto Di Matteo is confident that new signing Oscar will be a vital addition to the side's midfield.

The highly-anticipated Brazilian prospect completed a long-awaited switch to Stamford Bridge yesterday.

"He is a fantastic player, one of the youngest to push through to the Brazilian national team and he will be a fantastic signing for us," Di Matteo told the club's official website.

"Oscar is a very exciting young talent, a creative midfield player who scores goals. He will add a lot of options and solutions for us in midfield."

Reports have claimed that the Champions League winners paid in the region of £25m for the 20-year-old.