The Argentine rejoined Velez Sarsfield after falling out of favour at Stadio Olimpico and has hit out at the Serie A club's hierarchy for his treatment in ItalyMauro Zarate has lashed out at club president Claudio Lotito for his treatment last season in Italy.
The Biancocelesti attacker fell out of favour with coach Vladimir Petkovic and subsequently returned to his youth club Velez Sarsfield on a free transfer this summer.
The Argentine has since slammed Lotito for the way in which he was treated, claiming the Lazio supremo has "failed to live up to agreements."
"Why have I come home? I needed to feel important, to feel liked, the last days were very hard for me," the 26-year-old told Eurosport.
"In November, I had been training for the last time with the team and already I felt no confidence. I had not played a single minute in 15 games.
"I watched a game and then I went to the bathroom to cry, it's terrible when they do not let you do what you want. The blame is on Lotito and a few players, in addition to the coach, it is them who make the decisions.
"The president has failed to live up to agreements and did not want to pay me. He did not want me in his team but would not let me leave either.
"Lotito hurts the club and devalues the assets of Lazio."