Tottenham seals their place in the fifth round, with Everton next. Before that, though, attention turns back to the Premier League and a big clash with Liverpool on Thursday.
While Wycombe has a Championship relegation battle on their hands.
Jose Mourinho was forced to call on his A-listers from the bench to grasp past Championship strugglers Wycombe.
Spurs dominated the second half at Adams Park but wasted so many chances and were looking at the possibility of extra-time when Harry Winks gave them the lead with a delightful curling shot.
Within seconds, Tanguy Ndombele scored the third and then added a fourth and the scoreline acquired a point of comfort at odds with most of the this Fourth Round tie.
Spurs equalised at the break after Bale cancelled out Onyedinma’s opener, Mourinho turned to his big guns in the second half.
However, instead of Kane or Son, it was Ndombele who made the difference. He was involved in the build-up to Winks’ vital strike and then added a late double. It is a vibrant victory in the end.
Alli was injured and sat out from this rematch, with Son named on the bench but Bale returned to the team as Mourinho made 10 changes, with sight on Thursday’s league fixture against Liverpool.
Only Ben Davies withstood from the team at Sheffield United on their last outing.
Joe Hart deputised for Hugo Lloris in goal and was required to make an incredible early save from Admiral Muskwe, who sent a header flashing towards a top corner.
Ainsworth poised, Wycombe did not sit back and defend. With two up front, they chased and hustled, moved the ball at a breathless tempo and threatened from set-pieces.
Hart scrambled across his line to keep out a viciously swerving corner from Joe Jacobsen, who was forced off with an injury before half-time, and Onyedinma blazed over from distance.
The home team opened the scoring midway through the first half. Winger Uche Ikpeazu held up the ball, rolled past the challenge of Toby Alderweireld.
Ikpeazu’s cross was deflected by Davinson Sanchez as he failed to clear, rebounding towards Onyedinma who arrived and beat Hart, low to his right.
Tottenham trailed despite having produced a positive opening. Josh Knight made a sliding block to prevent Erik Lamela and Bale headed wide from a corner when he ought to have hit the target.
Bale, starting for the first time since he was injured at Stoke in the Carabao Cup quarter-final, was influential, requesting for the ball and trying to create. Not always with success.
Wycombe held on. Mourinho sent on Kane. Then Son and Tanguy Ndombele. Spurs bossed around Wycombe half. Kane was denied by a clearance from Jack Grimmer. Son fired wide, then over, two good opportunities before Winks broke through.
Finally, the pressure let out but Tottenham had to fight to reach the last 16.