Van Gaal has come under increasing pressure following Man United’s early Champions League exit this week.
Reports suggested the players were losing faith in van Gaal but Fellaini insisted they “trust” the Dutchman to lead them to success.
“We trust him [van Gaal]. He is the manager, it is his philosophy and we have to continue like that,” Fellaini said.
When asked if United can win the Premier League, Fellaini said: “Yes, of course. At the moment we are in the top four, we are there.
“I didn’t start the season because I was banned three games. After that I would just come in 20 minutes, 30 minutes, 45 minutes – that’s football.
“The manager decides but I am sure my time will come and I will show myself. I can help and I can play as well. Last season I scored goals and I did well. I’m sure my time will come and I will play.”
The outlook at United looks bleak and it seems that all is not well at United despite Fellaini’s comments.
Van Gaal will come under intense scrutiny if he fails to secure anything less than three points against Bournemouth this weekend. If United continue to produce meek attacking displays and disappoint in the league, then questions will be asked of van Gaal and the club may have to make a difficult decision in the summer.