Chelsea boss Luiz Felipe Scolari launched a furious tirade at his players in the middle of training yesterday.
The Blues' Brazilian boss blasted his team for failing to keep the ball in Tuesday's 4-0 Champions League stroll over Bordeaux.
And he tore into them again for making the same mistakes in their penultimate workout before tomorrow's showdown with title rivals Manchester United.
Seething Scolari said: "When I trained with the players, I said to them 'What were our mistakes against Bordeaux?' Then in training, we made the same mistake after 10 minutes, so I stopped training and told them 'I want this, this and this.'
"Against United, why is 10-0 better than winning 1-0? We need to keep the ball and stay in position."
Unbeaten Chelsea sit proudly with Liverpool at the top of the Premier League this morning, six points ahead of United who pipped them to the Double last season. But Scolari is demanding even more from his side.
He said: "What can we do better? More control of the ball. More touches on the ball. More time with the ball.
"I've seen the analysis of the Bordeaux game from my staff and what I said afterwards was a reality. After I put Belletti on, we controlled the game better.
"I want more possession of the ball, more control of the ball, more tranquillity."