Joe Jacobson's nerveless penalty stretched Aston Villa's winless run under Remi Garde to 10 matches as Wycombe battled to a 1-1 FA Cup third round draw.
Captain Micah Richards side-footed Villa into the lead at Adams Park, only for full-back Jacobson's spot-kick to earn League Two's Wycombe a lucrative replay against their Premier League foes.
Jacobson's penalty evoked memories of his spot-kick exploits when Bristol Rovers dumped out Roy Hodgson's Fulham in their run to the FA Cup quarter-finals in 2008.
Villa wasted the perfect opportunity to kick-start Garde's miserable managerial stint, the Birmingham club still rooted to the Premier League's foot.
Wycombe squandered four fine openings in the first half, but refused to be overawed, keeping their composure to snatch the draw.
While visiting captain Richards side-footed home without issue, Garry Thompson prodded wide from eight yards and Sam Wood wasted three promising scenarios.
Wycombe striker Thompson missed the target despite Villa freezing after an initial clearing header from Jacobson's fifth-minute corner.
Then Wood laboured just too long before taking aim after ghosting in from the left. The 29-year-old's delay in pulling the trigger let Jores Okore slide in for just enough of a recovering block to take the sting out of the effort.
The ever-lively Gil shortly made Wycombe pay for that profligacy though, cutting in off the right and feeding Richards, lurking on the cusp of the box.
The former Manchester City defender produced a first-time finish to sit at odds with the hosts' sluggish final-third play.
Villa failed to build on that advantage however, perhaps relieved to reach half-time with the 1-0 lead.
Wood volleyed high and wide from point-blank range after Bloomfield's cross, handing Villa a real reprieve.
And Bloomfield split Villa open with a fine counter-attack pass on the stroke of half-time - only for the ball to remain just out of Wood's reach.
Just when Villa expected to flex their top-flight muscle, the panicked defending which leaves them rooted to the Premier League's foot suddenly materialised.
Westwood's needless and clumsy challenge on Bloomfield gifted Wycombe a penalty - which Jacobson converted with ease.
The former Cardiff left-back sent Mark Bunn the wrong way to side-foot home and level the tie.
Wood then saw a challenging volley cleared off the line by Richards as Wycombe exerted yet more pressure.
Villa settled back to the task, only for Scott Sinclair to waste a fine chance by refusing to feed Leandro Bacuna, unmarked on the penalty spot.
Rudy Gestede, anonymous for the first hour, saw a shot deflected onto the corner of post and crossbar, compounding Villa's frustrations as Wycombe held firm.
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