Ex-Renault Formula One driver Nelson Piquet has hit out at team boss Flavio Briatore after he was dumped from the French team.
Piquet called Briatore his "executioner" in a statement released confirming his immediate exit from the team.
"I believe without doubt in my talent and my performance," said Piquet. "I didn't get this far by getting bad results. Anyone who knows my history knows that the results I am having in F1 do not match my CV and my ability.
"The conditions I have had to deal with during the last two years have been very strange to say the least - there are incidents that I can hardly believe occurred myself. If I now need to give explanations, I am certain it is because of the unfair situation I have been in the past two years.
"I always believed that having a manager was being a part of a team and having a partner. A manager is supposed to encourage you, support you, and provide you with opportunities. In my case it was the opposite. Flavio Briatore was my executioner."
Piquet also claimed he had received unfair treatment next to his double world champion team mate Fernando Alonso.
"For the 2009 season Briatore promised me everything would be different, that I would get the attention I deserved but had never received, and that I would get 'at least equal treatment' inside the team," he added.
"He made me sign a performance-based contract, requiring me to score 40% of Fernando Alonso's points by mid-way through the season. Despite driving with Fernando, two-time world champion and a really excellent driver, I was confident that, if I had the same conditions, I would easily attain the 40% of points required by the contract.
"Unfortunately, the promises didn't turn into reality again. With the new car I completed 2002km of testing compared to Fernando's 3839km. Only three days of my testing was in dry weather - only one of Fernando's was wet."
Renault has not yet confirmed who will replace Piquet for the European Grand Prix later this month.