Defender Patrice Evra has warned doubters to write off Manchester United at their peril following a turbulent week at Old Trafford.
The France international believes it would be a "big mistake" to listen to the critics who suggest the Red Devils are now in decline.
Striker Wayne Rooney appeared to question the future ambition of the club when he declared his intention to move on at the beginning of the week.
Rooney subsequently performed a dramatic U-turn and signed a new five-year contract on Friday.
That has led Evra to issue a warning to the club's detractors.
"The star at Manchester United is the team, not one player," he said. "Everyone at the club understands that mentality.
"All young lads want to play for this club because they respect the shirt, because that shirt is the biggest story - it's our history.
"That's the message you give to the young lads and when you finish the game, you have to look in the mirror and say you have done your job."
Meanwhile, Evra has dismissed claims of dressing room unrest following Rooney's outspoken comments which had appeared to signal the end of his time at Old Trafford.
He added: "There was no problem in the dressing room with Wayne and if he had wanted to talk, we were open because we wanted to help him.
"But it's a big mistake to say Manchester United is finished. I like to talk in a positive way, but that is the truth.
"I would not play any more for this club if I knew we were not strong enough to win the league. That is why we play for Manchester United and we will see at the end of the season.
"Yes, Manchester City are rivals, but they are every year. I love to play against them, I love to win against Chelsea and I hate to lose to Liverpool at Anfield."