Robinho says being beaten by Champions League opponents Tottenham would be a "disaster" for AC Milan.
Milan are top of Serie A and desperate to be crowned kings of Europe once again.
"But they are still very dangerous and we need to do well in the San Siro in the first leg to avoid going to London under too much pressure.
"It would be a disaster to be put out of the tournament. But we are not nervous about this tie.
"The team better in defence will go through."