Havertz starred in the false nine role in doubling his league tally for the campaign, while Mount produced just the latest in a string of top-level showings.
Tuchel omitted Mount from his first game at the Chelsea helm as the Blues battled to a goalless draw with Wolves on January 21, but the academy graduate has steadily won over his new boss since that day – and then some.
But boss Scott Parker is refusing to give up the ghost, despite his side trailing Newcastle by nine points with four games to play.
“I do believe we can win games with performances like today,” said Parker.
“And that’s what we have to do, there is no other option.
“I understand from the outside people will laugh and think I’m crazy, but there’s no other option for me.
“While it’s the case that we can, that’s our main focus from now until the end.”