The Portugal international returned from almost a month on the sidelines with a foot injury against Ajax last week, and completed the full 90 minutes of the return encounter with the Dutch giants at Old Trafford on Thursday night.
However, only sporadically did he sparkle, and he said: "It has been difficult to get the consistency. I am getting there but I need more minutes."
He added: "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."
Source: PA
Source: PA