Jose Mourinho wants Manchester United to go with Manchester City in the derby on Sunday.
United are nine points behind league leaders after 11 matches as they travel to the Etihad Stadium. Mourinho's team enjoyed a good week, after winning at Bournemouth and Juventus, after drawing at Chelsea when they won until the closing moments.
Mourinho, asking whether the desire was made with Pep Guardiola's team, said: "We will try. I cannot say that we will succeed in our motivation, in our desires, but we played two different matches against two excellent teams – Chelsea and Juventus – and we managed to get good results.
"And even if good results are not in our pocket, the show is there, a positive attitude is there so we will try but Manchester City is a very strong team."
Mourinho refused to be withdrawn on suspicion of violating FFP rules by City but praised their football operations.
"It's difficult for me to answer because I focus on my work, I focus on four lines [pitch], focus on football. If you want to talk about their football potential, we can talk and the potential of football starts with investment, and after that of course there is the quality of work, organization – I think it is untouched.
"But what is behind me cannot say but at the moment I am only thinking about football, and thinking about football is thinking about Manchester City as a football team there."
Romelu Lukaku can be available again after a hamstring injury. Mourinho said: "Lukaku trained with this team [Friday] morning. If the response is positive – and of course there is one more session tomorrow – he is ready. "