The experienced former England boss replaced Ronald Koeman in late November and lifted the Toffees away from danger with a seven-match unbeaten run that saw them climb from 16th into the top 10.
They arrive at Wembley for today's 5.30pm kick-off sitting ninth in the Premier League despite back-to-back losses over New Year.
“It’s a completely different dynamic,” said Mauricio when it was suggested we now face a different Everton to the one we beat 3-0 at Goodison Park in September. “They are now under another manager and they have changed a lot in the six months since we played there.