Jose Mourinho runs the risk of losing his job as manager of Manchester United if he continues to bother his players.
That is according to Game of the day the expert Alan Shearer, who believes that players have the power over managers.
"When you look at Mourinho when he first entered the Premier League, he was happy, he was shameless, he was smiling, he was arrogant in a good way," he said on BBC One.
"Every time you see him now, he's frowning, he's angry, he wants to row with everyone.
"We have learned from the past that, if you take too many players like you did at Chelsea and Real Madrid, then there is only one thing that will happen.
"If he bothers too many players because of his form, then he will eventually lose his job because the players, most of the time, win, they are the ones who have power now, unfortunately."
Playmaker Mata, 30, and midfielder Herrera, 28, are out of contract at the end of the season.
It is understood that they are disappointed that the Old Trafford bosses have not given them new offers this year.
On the other hand, United favors the exercise of 12-month options in its contracts.
There is a lot of Spanish interest in Mata and Herrera.
But it is understood that they are happy to stay in Manchester.
Harry Maguire will not leave Leicester City this season, according to teammate Ben Chilwell.
Manchester United was interested in signing Maguire during the summer transfer window, but resisted the Fox sales price.
They could try again in January, but Chilwell said: "He is a Leicester player, he wants to play for Leicester, he has made it clear to all of us.
"He's going to be here for the whole season."
"He's going to be good for us." We saw that again tonight, what a good player he is. We are all happy that he has stayed. "