Lewis Grabban's late strike stunned Arsenal as Nottingham Forest dumped the Gunners out of the FA Cup.
The substitute sealed a 1-0 win for the Championship side to book an East Midlands derby with Leicester in the fourth round.
Arsenal, 14-time winners, produced a disjointed performance which got what it deserved, with Forest more than matching the visitors to continue their upward curve under Steve Cooper.
Four years ago managerless Forest beat the Gunners 4-2 in the third round as Arsene Wenger’s reign meandered towards its disappointing conclusion.
Tottenham needed three goals in the final 16 minutes to avoid an FA Cup upset against Morecambe as they came from behind to win 3-1 on an afternoon when record signing Tanguy Ndombele was booed off by the home crowd.
Anthony O'Connor’s first-half goal had the League One side – 59 places below their hosts on the football ladder – dreaming of the most famous result in their history, but a late blitz spared Spurs’ blushes.
After Ndombele, who asked to leave the club last summer, angered the home fans by taking an age to leave the field when being substituted – surely a terminal act in the Frenchman’s underwhelming stay in north London – quickfire goals from Harry Winks, Lucas Moura and Harry Kane sent Antonio Conte’s side through to round four.
But Conte will have had his assertions that the majority of his squad are not good enough to compete for the major honours confirmed in a sub-standard display and Ndombele might not be the only one considered to be at the end of the road.
Daniel Podence bagged a brace and Nelson Semedo was also on the scoresheet as Wolves breezed into the fourth round with a 3-0 win over Sheffield United at Molineux.
Wolves were given a couple of reprieves following some uncharacteristic disjointed defending early on but Podence opened the scoring inside the first quarter of an hour and, from there, the hosts hardly looked back.
They had to wait until the 72nd minute for Semedo to double their lead before Podence grabbed his second soon after, the forward's first goals since scoring in the Carabao Cup defeat against Tottenham on 22 September.
Billy Sharp thought he had equalised before half-time but the goal was chalked off for a high foot as the Blades endured an unhappy return to the ground where their relegation from the Premier League last season was confirmed.
Tom Ince's first-half goal and a late Tyrese Campbell strike earned Stoke a 2-0 win over Leyton Orient to book the Championship side a first fourth-round appearance since 2016.
Ince netted three minutes from half time and then provided the pass for substitute Campbell to settle the contest in the 89th minute.
But Kenny Jackett’s League Two visitors will feel they should have at least forced extra time in this first FA Cup meeting between the clubs.
Substitute Ruel Sotiriou missed a glorious chance with the score still at 1-0.
And Harry Smith, who had previously scored eight times in nine FA Cup ties, should have extended his sequence in the opening period.
Stoke’s dismal recent form, including back-to-back home defeats by Derby and Preston and one win in six outings, was reflected in the sparse attendance of 5,269.
Mark Harris fired an extra-time winner as Cardiff beat Preston 2-1 in the Welsh capital.
Harris' first goal in the competition came with the third-round tie just four minutes from a penalty shoot-out.
Isaak Davies, another of the Bluebirds' young guns, had earlier scored his first senior goal before Daniel Johnson's penalty put Preston back on terms.
Luton Town ensured there was to be no FA Cup third-round upset at Kenilworth Road as they shook off the rust to beat League Two Harrogate Town 4-0.
After a slow start to proceedings, the Hatters – who had not played for 29 days – took the lead through top-scorer Elijah Adebayo before Cameron Jerome, Kal Naismith and Luke Berry added to the scoreline in the second half.
Milot Rashica's late winner secured Norwich’s place in the FA Cup fourth-round draw following a hard-fought 1-0 win at Charlton.
The Kosovo international struck with Norwich’s first goal since 30 November, against the run of play in the 79th minute, after Charlton had dominated for large parts of the game.
