The former Queens Park Rangers midfielder has masterminded a fantastic 16-game unbeaten streak for his side leading up to our fourth round tie.
Fifth in League Two, the Chairboys have never faced us in a competitive game but, with the chance to scalp Premier League opponents, Ainsworth says his charges can go about their business with freedom.
"There's no pressure on us," said the 43-year-old, who took over as player-manager of Wycombe in 2012 before hanging up his boots the following year – although he did appear for the Chairboys as a substitute in a Checkatrade Trophy tie with Northampton Town in August this season.