Luiz singles out Adam

Luiz: Expecting tough game

David Luiz has singled out Scotland's Charlie Adam as the biggest threat to Brazil ahead of their showdown at the Emirates Stadium on Sunday.

The defender, who joined Chelsea in January from Benfica, is hopeful of continuing his impressive form against the Scots.

Luiz, 23, is however expecting a tough test in their friendly against Craig Levein's side despite admitting Blackpool star Adam was the only name in the Scotland squad he knew.

Excellent

"I don't know much about them," he said. "I know that Brazil played against them three times in the World Cup and they made it difficult for them.

"But Charlie Adam is the only name that I know from this team.

"He is an excellent player but I hope he doesn't do too well tomorrow.

"But it is going to be a difficult game because every team that plays against

Brazil always does their best. So it's going to be a great game."

Delight

Luiz also admitted his delight since moving to Stamford Bridge.

"Everything has been very positive since I signed and I am very happy for this

opportunity that God gave me to play at Chelsea.

"I have to keep my concentration and focus to become a better player in the future.

"As for Chelsea, we are still fighting for the title and the Champions League."