Chelsea assistant manager Gianfranco Zola recognises it's been a tough week for fans after last Sunday's 6-0 thrashing at Manchester City.

The Blues prepare to host United in the FA Cup fifth round on Monday night, and Zola says the players must accept there will be times they enjoy playing less than they could in pursuit of 'Sarriball'.

“Of course when you lose 6-0 you don't enjoy it, but we also won 5-0 and everyone enjoyed that," Zola said.

“But again, there is a stage when you are working on something that, when it's still not in place, it can be hard, but there will be a moment when you are going to enjoy it a lot more than at the moment.

“I always loved this game but there were moments when I was playing that it wasn't pleasant because I was working on it. I believe the players are enjoying what they're doing, and like what we're doing.

“But I also know that there are moments when we lose and things don't work it's painful. But we continue because we believe in what we're doing."