Sir Alex Ferguson has launched an amazing attack on Manchester City and warned them he has "plenty of ammunition" if they want to engage in mind games.
Earlier this week, former Blues midfielder Patrick Vieira said the decision to bring Paul Scholes out of retirement smacked of desperation.
However, United have won nine Premier League games and drawn one with Scholes in the team, suggesting the move has worked.
It certainly has provided Ferguson with the opportunity to hit back in a week when Carlos Tevez has made his controversial return to the Manchester City fold.
"Desperation? Paul Scholes is the best midfielder for the last 20 years," said Ferguson.
"Roberto Mancini had a little dig at us a couple of weeks back. We are all going to play our hand. I have plenty of ammunition that way.
"Desperation? On Wednesday they played a player who refused to go on the pitch and the manager had said would never play for them again. What is that?"