Chelsea defender David Luiz has revealed that he often argues with his teammates during training.

The Brazilian international has admitted that on one occasion he almost had a physical altercation with striker Didier Drogba, who left the club during the summer for a lucrative stint in China.

However, Luiz believes that his tenacity is not necessarily a bad thing.

"I knew the responsibility of wearing the Chelsea shirt, but I kept in my mind that I would never be intimidated by the big names," he said. "Didier and I almost had a fight when he got angry after I challenged him during training.

"But having an argument is a good thing for the team and the players have to feel comfortable with that."

Luiz joined the Blues from Benfica in January 2011.