The dismissal of James for handling on the goal line, when a shot deflected off his leg and onto his arm, prompted Blues fans to launch an online petition to get him banned from officiating their games.
More than 80,000 signed it but Tuchel steered clear of conspiracy theories.
"We cannot get lost in ideas that there is something behind it. We have to make ourselves free from this and do what we need to do to be able to win this match.
"Do we need a top referee? Yes. Do we need good decisions from VAR or maybe no decisions from VAR? Yes.
"Do we need a little bit of luck? Yes. And hopefully we can turn things around with Anthony Taylor."
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