Real Madrid goalkeeper Iker Casillas admits teammate Robinho has not been his bubbly self in preseason.

Robinho is the subject of serious interest from Chelsea and Casillas admitted: "I see him as a little sadder, but not too bad. He doesn't have his usual freshness.

"At Madrid, we have what we have and must be exposed to news and rumors.

"Robinho is a great player and we're delighted with him."