Central midfield: Jorginho
Jorginho followed Sarri from Naples to London, and he has morphed into a vital component of this Chelsea side. He has completed a staggering 853 passes in eight games thus far, and he has been the heartbeat of the Blues' midfield.
A technical and clever player, he circulates the ball very effectively. Chelsea's 62.7% possession is second only to Manchester City, and much of it has been down to the Italian pulling the strings in the centre of the park.
Right midfield: N'Golo Kante
Kante has not been made use of effectively this season, as Sarri's approach keeps Chelsea in possession of the ball for the majority of the time. But he has carried his changed role to great effect, playing the right side of the midfield for a change.
His tackling and intercepting self has taken a step back, but he is developing his attacking game. Kante's shots per game have risen, and his tackles and interception numbers have waned as well. Despite this, his intensity and work rate is just as vital for Chelsea.
Left midfield: Paul Pogba
Paul Pogba has come under the radar due to his possible future moves as well as his exploits on the pitch, but he has still had a better campaign than the likes of Mateo Kovacic and Fred.
He has been the creative force at United, and no one has more than his 12 key passes. He also leads his side for dribbles, and he has two goals and two assists to his name in the league.
The Frenchman's attitude has come under question at times, but with his quality, he can surely make the impact on Saturday