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.
"It'll be a brilliant day for Wycombe Wanderers. We want to give a good account of ourselves so we'll give our best and see what happens. We know we can cause them problems.
"If it takes Tottenham Hotspur to end our unbeaten run then that says something, but I'm hoping we can keep this run going.
"There are fairytales and upsets in this competition. If Spurs aren't at their best then we have a chance. We believe in ourselves."
DON’T MISS SATURDAY’S OFFICIAL MATCHDAY PROGRAMME!
Pick up your copy of our official matchday programme at the Wycombe tie on Saturday.
It’s £3.50 for 100 pages, including...
- Wycombe wanderings: Meet the players who connect the two clubs and recall our previous friendly meetings with Wycombe
- Main feature interview with Kevin Wimmer
- Mauricio Pochettino's exclusive column
- Interview with ex-Spur and former Wycombe boss Peter Taylor
- Cameron Carter-Vickers profiled in 'Centre of Attention'
- All the info on Wycombe's squad and a chat with their former goalkeeper Martin Taylor
Buy yours from a number of points around the stadium or from the Spurs Megastore on Saturday.
Sample it now for free with our 12-page online preview edition
or buy the full 100-page digital issue via tottenhamhotspur.com/programme