Inter held champions Milan to a 0-0 draw in the Milan derby on Sunday, although with Seria A leaders Juventus winning on Saturday, the stalemate did neither side any favours.
Juventus have a five-point lead over Milan and early season surprise packages Lecce, while Inter, unbeaten are eight points behind the leaders.
Inter’s best chances fell early in the match, with Christian Vieri being denied by Milan keeper Dida.
“It was a shame those chances didn’t go in but to be frank he (Vieri) played better tonight then in the last two games including Valencia,” he said.
The defences of both teams have been criticised this season and Mancini was pleased with the clean sheet.
“It was a test that we passed,” said Mancini, “We showed that against a team of Milan’s calibre we can go 90 minutes without conceding a goal.
“I am satisfied with the way we played. It was a good performance against a great side. We had our chances but a draw was fair and I can cope with a point against Milan,” he added.
Milan coach Carlo Ancelotti was also satisfied with the result.
“I’m satisfied with the way that we played. We were very competitive and played some good football. A draw was fair enough and the defence did very well to keep them out,” he said.