Nani has admitted he is struggling to regain his top form since returning from injury for Manchester United.
The Portugal international played in both legs against Ajax in the Europa League after being sidelined for a month.
And although Nani helped United edge past the Dutch champions 3-2 on aggregate to set up a last-16 clash with Athletic Bilbao, the 25-year-old said his best form remains elusive.
"I am getting there but I need more minutes," he said. "It has been difficult to get the consistency.
"I will work hard to come back because we need every player. Just now I am not at my best but I will try to recover my form as quickly as possible."
With Antonio Valencia having suffered a hamstring injury in Amsterdam last week and the title race reaching a critical stage, United manager Sir Alex Ferguson needs Nani for the forthcoming trips to Norwich and Tottenham.
They start the weekend two points behind leaders Manchester City with 13 games remaining.
But United could trail Roberto Mancini's side by five points when they start at mid-table Norwich on Sunday as City entertain struggling Blackburn on Saturday.