The League One Lions come to White Hart Lane on a lengthy unbeaten run and having dispatched three top-flight sides from the competition already this season – Bournemouth, Watford and Leicester City.
Plaudits have been rolling in for both clubs ahead of the tie, with Harris named the top boss in the third tier of English football for February, while our talismanic front man Harry Kane – himself a former Millwall loanee – picked up the EA SPORTS Player of the Month prize for the same period in the Premier League.
But with a fresh test coming on Sunday, Harris has cranked up the pressure, insisting his team has nothing to lose.