Four wins and two draws in six Premier League games since Tuchel's arrival, meanwhile, has seen the London club rise back into top-four contention, currently just two points behind the Champions League spots.
Here, Sports Mole rounds up Chelsea's latest injury and suspension news ahead of the clash with Man United, who occupy second position in the table.
Type of injury: Muscle
Possible return date: March 4 (vs. Liverpool)
Thiago Silva, who has recently been on the sidelines with a muscular problem, was back in training last week but was not involved against Southampton or Atletico. The Brazilian had been tipped to return against Man United, but Tuchel ruled him out during his press conference on Friday.
CHELSEA'S SUSPENSION LIST
Chelsea have no players suspended for this match.