Carlos Tevez's agent Kia Joorabchian has responded to claims by Gary Neville that the striker "downed tools" during his final days at Manchester United.
Tevez spent two years at Old Trafford following his loan arrival from West Ham in 2007 but angered fans by leaving for bitter rivals Manchester City, where he would add a third Premier League title to the two he won at United.
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Having hailed Tevez's partnership with Wayne Rooney and Cristiano Ronaldo as "out of this world" and "breathtaking" during the striker's time with the club, Neville went on to tell The Football Show that he was disappointed at the manner of Tevez's departure.
"What annoyed me about Tevez was that he downed tools in his second season," said Neville. "I felt disappointed that, as a professional, he didn't act the right way."
But Joorabchian has insisted to Sky Sports News that Tevez was fully committed to Manchester United and highlighted the Argentine's record for the club in the 2008/09 season.
When asked if there was anything wrong with Tevez's attitude during his last year, Joorabchian said: "Absolutely not, he was desperate to play. He scored 15 goals with seven assists, his record was superb. Every time, he was available for every game bar the three he missed through injury.
"I think the person's professionalism to be questioned is Gary Neville because he didn't do his homework on Carlos' career or as a reporter to say why Tevez wasn't [professional]. He never made any phone calls, he never asked the question of me or anyone to know what has happened. He just makes comments time and time again.
"By saying things like that, he is putting a mark on the back of a player who has won double or triple the trophies he has ever won. Carlos has won trophies in every single league he has ever played in, he has been nominated as player of the year in South America more than any other player in history and now, at the age of 34, he's just won the league and scored the winning goal with Boca Juniors again."
Neville had also said of Tevez: "He started sitting on the treatment table, started coming out late for training, started messing around... I understood that he had circumstances, but his people were in his ear all the time and he was so led by his people. It was always going to come to an end like it did."
But Joorabchian defended his player against the accusations and revealed that United had an option to sign Tevez permanently from West Ham but did not take it up.
He said: "Generally speaking, Gary Neville spoke about professionalism, the treatment table and he spoke about people being in his [Tevez's] ear. What he doesn't understand is, and this is when a reporter should have the correct information, no matter who was in his ear, no matter who was speaking to him, if Man United had wanted to exercise an option, all they had to do was sign a paper and send it to the Premier League.
"He wanted to stay at Man United right after Moscow and winning the Champions League when he came on and he knew what he had to do. He had to get under Chelsea's skin, he got [Didier] Drogba sent off and they ended up on penalties, which they won, and it was a great moment.
"They came back and him, Rooney and Ronaldo had a great combination going forward, they were very happy, but Man United didn't exercise the option. It was as simple as that.
"Gary Neville is speaking about people being in his ear as if Tevez decided at that point to leave during that year, but it was Man United who didn't exercise that option. Tevez only decided after the option had expired that he had been sitting there for nine months and no one has exercised the option."
'Tevez, Rooney and Ronaldo were best in PL'
Neville feels that, at their peak at Manchester United, Tevez, Rooney and Ronaldo were the best front three in Premier League history.
"Let's be clear here, Tevez, for a year, with Ronaldo and Rooney, was just breathtaking," Neville said on The Football Show.
"It was out of this world, it really was. Not just because of the quality of the players, but because there was a real selfish, horrible, nasty determination to those three.
"Ronaldo in a different way on the pitch, in the sense that he wouldn't go around kicking people, hassling people and hustling. He was just immense in terms of his performance levels. But Rooney and Tevez were street fighters, with unbelievable ability.
"We talk about the best front threes in the Premier League. You'll never beat those three for me. You can talk about [Sadio] Mane, [Mohamed] Salah and [Roberto] Firmino, I love them to bits. [Raheem] Sterling, [Sergio] Aguero and [Leroy] Sane at City as well.
"But that front three of Rooney, Ronaldo and Tevez at their peak was out of this world."