Brazilian Renan scored at the death to cancel out an early Fredy Guarin effort, meaning both Mihajlovic's games in charge have ended with a 1-1 scoreline.
"Am I happy? No, we deserved three points," the Coach told Sky Sport Italia.
"As with Lazio, it was another good performance and we attacked Inter high up the pitch. If we had believed in ourselves a little more, we could've hoped for a win.
"Walter Mazzarri did well to say we played better, because Samp were superior today and that shows through in the statistics too.
"I had said when I arrived that I like to play in order to win, not to avoid defeat. If the lads continue to put in this kind of effort, we can do something special."
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