The Nerazzurri had dropped to second place for 10 minutes this afternoon, but victory maintains their one-point lead over Roma.
"I am happy, but not just for my brace, as the whole team put in a great performance and the three points were very important," said the midfielder.
"I liked my second goal the best, as it was a team move and those are always better. I just had to be in the right place at the right time to meet Dejan Stankovic's pass.
"The victory also allows us to face the second leg of the Champions League quarter-final at CSKA Moscow with peace of mind on Tuesday.
"Every game from here to the end of the season is like a Cup Final."