Is the sentiment in the given input text negative?

Input Text: "Mihajlovic had dinner with Berlusconi on Friday, Silvio told Mihajlovic that he's not happy with the way Milan started the season [Gazzetta]"
"Mihajlovic had dinner with Berlusconi on Friday, Silvio told Mihajlovic that he's not happy with the way Milan started the season [Gazzetta]"