The Spaniard has undergone a superb transformation since the arrival of Mourinho, serving as a constant rampaging presence in midfield alongside Paul Pogba this season; he has made a total of 41 appearances in all competitions so far.
Herrera’s most recent display, during a 2-0 win over league leaders Chelsea, was perhaps his best yet: he claimed a goal and an assist whilst keeping Eden Hazard quiet all game.
Speaking to ManUtd.com, the 27-year-old was quick to emphasise the importance of hard work and continued commitment to the cause when it comes to succeeding at Old Trafford.
“I have to keep working, performing and giving what the manager wants me to give,” he said.
“We have great players and Manchester United has the capacity to sign big players, so I cannot sleep.”
The man bleeds red more than anybody else. Every tackle, run and pass is underpinned by an awareness of what this badge represents and the level of dedication required at this level. An affable figure off the pitch; simply monstrous on it. He is, without doubt, the pulsating heartbeat of this side.