Manchester united back best ahead derby affair says sharpe

It seems like you're referring to a quote from Mark Sharpe, a former Manchester United player. Here's a possible interpretation of what he might have said:

"Manchester United are back to their best ahead of the derby affair."

In this quote, Sharpe is suggesting that Manchester United have regained their form and are playing at a high level, which is a positive sign as they prepare to face their local rivals, Manchester City, in the derby match.