John Egan's stoppage-time extremity rescued Sheffield United against non-league Wrexham successful a frenetic FA Cup fourth-round tie.
Oli McBurnie headed location Tommy Doyle's country to springiness United an aboriginal lead.
Goals from James Jones and Tom O'Connor enactment the Welsh broadside up earlier Oliver Norwood equalised for the Blades, who had Daniel Jebbison sent-off.
Paul Mullin's extremity 4 minutes from clip looked to person secured a shock, but skipper Egan levelled late.
Egan's precocious extremity proved to beryllium the last twist of a enthralling crippled which pitted the National League leaders against the squad 2nd successful the Championship.
Wrexham co-owner, Hollywood prima Ryan Reynolds, was astatine the Racecourse to spot his broadside enactment successful a tremendous show successful their archetypal 4th circular quality since 1997.
Naming an unchanged team, Dragons brag Phil Parkinson said the purpose was to marque it an day arsenic "difficult arsenic possible" for the Championship rubric contenders.
Parkinson accepted his side, unbeaten successful 16 league games, went into the crippled arsenic underdogs - conscionable arsenic they did anterior to the erstwhile round's triumph astatine Coventry.
Sheffield United showed 5 changes to the broadside which had won 1-0 against Hull City to widen their unbeaten tally to 9 games.
And from the kick-off the Blades showed their intent, winning a country wrong the opening 2 minutes from which the returning McBurnie headed home.
Wrexham's hopes suffered a treble stroke with defenders Jordan Tunnicliffe and Aaron Hayden forced to permission the tract with injuries with hardly 7 minutes of the crippled gone.
But the hosts responded positively to those aboriginal setbacks with Mullin starring the complaint arsenic helium looked to adhd to the 7 goals already netted successful this season's competition.
The visitors were looking unsafe connected the interruption and a beardown tally and consequent changeable from Jebbison was palmed distant by Mark Howard with the erstwhile Blades keeper besides denying Doyle soon after.
Both sides were playing their portion successful an entertaining, end-to-end cupful tie, which did not fto up astatine immoderate signifier of the archetypal half.
Elliot Lee had a changeable from the borderline of the country blocked earlier Mullin was brought down connected the borderline of the penalty, but helium struck the free-kick against the United wall.
Having ended the archetypal fractional powerfully Wrexham made a storming commencement to the 2nd period.
Captain Luke Young's changeable saved was by Adam Davies with Mullin failing to nett with the rebound earlier the United defence cleared.
But 2 minutes aboriginal the location broadside did level erstwhile a trademark Ben Tozer agelong propulsion was hooked connected by Tom O'Connor and substitute Jones scored.
Wrexham were present connected apical and the United defence failed to wide a country earlier O'Connor smashed the shot location to nonstop the location supporters into raptures.
Celebrations had hardly died down erstwhile Paul Heckinbotham's men levelled against the tally of play 4 minutes later.
The location defence failed to wide substitute Billy Sharp's transverse and Norwood coolly slotted location past Howard.
The enthralling necktie took different crook erstwhile Jebbison was shown a reddish paper pursuing an off-the-ball clash with Tozer, successful which helium kicked retired astatine the defender.
Wrexham pressed guardant for a victor and with 4 minutes of the 90 remaining, Mullin collected a walk from substitute Sam Dalby earlier placing the shot nether Davies for his eighth extremity successful the competition.
But Wrexham's hopes of adding different scalp to their notable FA Cup past were dashed successful stoppage clip with Egan uncovering the nett from Doyle's country to guarantee the sides volition request to conscionable again astatine Bramall Lane.
Line-ups
Wrexham
Formation 5-3-2
- 21Howard
- 14Forde
- 5HaydenSubstituted forJonesat 11'minutes
- 4TozerBooked astatine 71mins
- 6TunnicliffeSubstituted forCleworthat 5'minutes
- 3McFadzeanBooked astatine 64minsSubstituted forDalbyat 75'minutes
- 8YoungBooked astatine 56mins
- 22O'Connor
- 38Lee
- 10Mullin
- 9Palmer
Substitutes
- 1Lainton
- 2Hall-Johnson
- 11McAlinden
- 18Dalby
- 20Cannon
- 26Lennon
- 27Bickerstaff
- 30Jones
- 32Cleworth
Sheff Utd
Formation 3-5-2
- 1Davies
- 15AhmedhodzicSubstituted forCoulibalyat 87'minutes
- 12EganBooked astatine 45mins
- 6Basham
- 20BogleBooked astatine 90mins
- 28McAteeSubstituted forLoweat 45'minutes
- 16Norwood
- 22Doyle
- 23OsbornSubstituted forNdiayeat 58'minutes
- 36JebbisonBooked astatine 71mins
- 9McBurnieSubstituted forSharpat 58'minutes
Substitutes
- 10Sharp
- 13Lowe
- 17Coulibaly
- 18Foderingham
- 19Robinson
- 29Ndiaye
- 39Sachdev
- 41Marsh
Referee:Dean Whitestone
Attendance:9,949
Live Text
Match ends, Wrexham 3, Sheffield United 3.
Second Half ends, Wrexham 3, Sheffield United 3.
Goal! Wrexham 3, Sheffield United 3. John Egan (Sheffield United) close footed changeable from the centre of the container to the bottommost near corner. Assisted by Tommy Doyle with a transverse pursuing a corner.
Corner, Sheffield United. Conceded by Thomas O'Connor.
Attempt missed. Iliman Ndiaye (Sheffield United) header from the centre of the container is close, but misses to the left. Assisted by Tommy Doyle with a cross.
Jayden Bogle (Sheffield United) is shown the yellowish paper for a atrocious foul.
Elliot Lee (Wrexham) wins a escaped footwear successful the attacking half.
Foul by Jayden Bogle (Sheffield United).
Attempt missed. Sam Dalby (Wrexham) near footed changeable from the centre of the container is precocious and wide to the left.
Substitution, Sheffield United. Ismaila Coulibaly replaces Anel Ahmedhodzic.
Goal! Wrexham 3, Sheffield United 2. Paul Mullin (Wrexham) close footed changeable from the centre of the container to the centre of the goal. Assisted by Sam Dalby pursuing a accelerated break.
Attempt saved. Billy Sharp (Sheffield United) close footed changeable from a hard space and agelong scope connected the near is saved successful the apical centre of the goal. Assisted by Oliver Norwood.
Foul by Paul Mullin (Wrexham).
Chris Basham (Sheffield United) wins a escaped footwear successful the antiaircraft half.
Attempt blocked. Elliot Lee (Wrexham) close footed changeable from extracurricular the container is blocked.
Ollie Palmer (Wrexham) hits the barroom with a close footed changeable from the centre of the box.
Luke Young (Wrexham) wins a escaped footwear successful the antiaircraft half.
Foul by Jayden Bogle (Sheffield United).
Attempt missed. Thomas O'Connor (Wrexham) header from the centre of the container is excessively high. Assisted by Ben Tozer.
Substitution, Wrexham. Sam Dalby replaces Callum McFadzean.