Nani says he cannot wait until the Community Shield to respond to Chelsea's jibe that Manchester United paid over-the-odds for his signature.
That was the accusation levelled at United by their rivals' chief scout Piet de Visser after the Dutchman watched Nani at the European Under 21 Championship in Holland.
As a result, Nani is now doubly keen to showcase his talent when the two sides meet in the season's opener at Wembley on 5th August.
"I am already thinking about that game," Nani is quoted in The Daily Mail. "That is where I will make my mark.
"I want to show Chelsea that buying me has been a great move by Manchester United."
Nani has been compared to new team-mate Cristiano Ronaldo after coming through the youth ranks at Sporting, and will be joined at Old Trafford next season by fellow new signings Owen Hargreaves and Anderson.
