Louis van Gaal wants Manchester United to use Tuesday's home Champions League clash with CSKA Moscow as a turning point for their season.
United secured a 1-1 draw in Russia thanks to Anthony Martial's header in their most recent European outing on October 21 but have since recorded three 0-0 draws in a row, results which have seen them lose ground to Manchester City and Arsenal at the top of the Premier League table and exit the League Cup on penalties to Middlesbrough.
"When I see their characters, I don't think they have doubts about that quality," Van Gaal said of his attacking players. "It can change in one match - let that be CSKA, because we need victory.
"I have to hope we score against Moscow again because then we are talking in a different way."
"The most important thing is the three points. It's football - sometimes you score, sometimes you don't," Musa said.
"I'm sure I'll score again soon. I hope it'll be in the Manchester United game."
Bibras Natcho (head) and Vasiliy Berezutsky (thigh) are both doubts for CSKA boss Leonid Slutsky, who was confirmed as Russia's coach for the Euro 2016 finals this week.
