The 26-year-old has dropped down the pecking order at the Red Devils following the arrival of summer signings Morgan Schneiderlin and Bastian Schweinsteiger.
However, the Daily Mail is reporting the 26-year-old is happy at United, despite seeing limited first team action so far this season.
Herrera recently told United magazine: "Last season was the first with the new staff and a lot of new players like me but, now, we have no excuses. We have to fight for everything," Herrera said.
"We are going to try to win every game. When I see the millions of supporters we have, I just think we cannot be fourth in the league, we have to be higher.
"It's a very exciting season and we will be fighting for everything."