The 27 year old Spanish international and Manchester United midfielder felt that their hostile clubs are aware of them.
The Spanish midfielder feels that now the EPL top five clubs are aware of them as they are now able to resurrection them in this season.
In this season after 24 games the Red Devils are sitting at the sixth place on the table, they are now just five points away from the second place Tottenham.
This season Manchester United is having a wonderful run in their league and they are now unbeaten in their last 15 games.
Herrera thinks because of that the top five of EPL will fell their presence at their back.
He said that: "The first six teams in the league, and I add also Everton because they have a very good team, the race will be very tough,"
"We all want to be in the top four and [there's] still a lot to play for but I think we are in a good moment.
"They can see Manchester United is chasing them.
This season the 27 year old midfielder played some formidable football for the Red Devils, as he makes 21 appearances for them under the special one.
But he was not able to score a goal for them in this season in the premier league where in the previous two seasons he has scored 9 league goals for them.
Herrera added: "Everybody wants to help the team to score. I try,"
"I am shooting as much I used to do but I remember my first season I shot eight times and I scored eight goals but football is sometimes like this.
"Sometimes you hit the ball on target and sometimes you don't. I will keep improving, I will try to help the team."
In their next match the Red Devils will host Watford in the premier league game.