The Uruguay midfielder agreed a switch to San Siro for the 2012-13 campaign, with the option of a permanent transfer at the end of the deal.
But while Cannavaro accepts that Gargano will be missed, he maintains that the competitiveness of Serie A means his side are still in with a shout for honours.
“He [Gargano] was a very important player, and grew up with this group,” reflected the 31-year-old.
“However, he made a choice, and was sincere and open in his reasons. Now let us look forward.”
“There are several competitive teams. This league is very balanced. I have never played in a more solid group than this, and I assure the fans that we won’t give up until the last second.”
“Whoever wears this shirt knows that they must give their best. Playing in Naples is special, and those that are here have to be happy and motivated to win something important.”
Cannavaro, younger brother of World Cup winner Fabio, has amassed over 200 appearances for Napoli in two spells at the club, but has never been capped by Italy.