The bookmakers did not even offer odds on a 7-5 scorecast and everybody at the Madejski left the ground shaking their heads and wondering if they would ever see anything like it again.
Well they shouldn't be surprised if they do, because as football has shown us over the years, crazy scorelines can pop up every now and again.
Here are ten of the more surprising.
2011 Premier League — Manchester United 8-2 Arsenal
Arsenal fans will long remember Tuesday night but will want to forget about this nightmare from last August when they suffered a disembowelling at the hands of Manchester United, with Wayne Rooney scoring a hat-trick in an 8-2 victory for Sir Alex Ferguson's side.
The result was the most desperate defeat Arsenal have suffered in the Premier League with a makeshift defence missing Bacary Sagna and Thomas Vermaelen ripped to shreds.
Rooney ran riot with two direct free-kicks and a penalty, bringing up his 150th United goal in the process, Ashley Young scored two brilliant curling efforts, Danny Welbeck, Nani and Park Ji-Sung added further goals and Arsenal's futile replies came from Theo Walcott and Robin van Persie (if you can't beat them join them Robin eh?).
Van Persie also missed a penalty but The Arsenal captain had missed a penalty in the first half but United comprehensively dominated throughout and could have had more, with Rooney unlucky to hit the post in a quite wonderful performance from the England striker. Cue many: 'I'd 8-2 be an Arsenal fan' jokes.
2007 Premier League - Portsmouth 7-4 Reading
Last night was not the first time that Reading have been superb in front of goal only to then ship seven at the back as they suffered a similar fate at Fratton Park five years ago.
Benjani- only playing because Kanu was injured - bagged two in the opening 37 minutes for Portsmouth in the highest scoring Premier League match ever before Stephen Hunt started the Royals' comeback with a point-blank header just before half-time.
Shortly after the break Dave Kitson put Reading on level terms after David James spotted a Nintendo on the touchline and came racing off his line. But Hermann Hreidarsson soon restored the hosts' advantage before havoc ensued.
Benjani completed his hat-trick from the spot on 70 minutes and Nico Kranjcar added a fifth soon after before Shane Long pulled one back (are you still following?), only for Ivar Ingimarsson to head through his own net. Four goals in nine minutes and it was 6-3. Sulley Muntari made it a ridiculous 7-3 with an injury time penalty before Nicky Shorey - who earlier missed a penalty that cost this match at least 10 places on the list - scored to complete a farcical second-half.
1960 European Cup final - Real Madrid 7-3 Eintracht Frankfurt
There is a technical term for matches such as this: absolute belter. Real Madrid completed their unprecedented haul of five consecutive European crowns after winning at Hampden Park, where a young Alex Ferguson's obsession with the trophy began. Frankfurt forward Richard Kress gave the German champions the lead, but that goal only served to awaken the beast. Alfredo di Stefano scored twice from close range to put Real ahead on the half-hour and they never looked back. What followed was a dazzling display of attacking artistry from Los Merengues, with Ferenc Puskas firing into the roof of the net just before half-time. Puskas scored a penalty 10 minutes after the break before a header and a neat turn and finish secured a historic four-goal haul for the Hungarian. That goal sparked a frantic spell of four goals in as many minutes: throughout the Real onslaught Frankfurt still managed to force several saves from keeper Rogelio Dominguez, and Erwin Stein finally beat him, not once but twice, either side of Di Stefano sealing a hat-trick of his own. The match strengthened Real's legacy as entertainers par excellence, and delivered a football lesson to its British audience.
2001 UEFA Cup final - Liverpool 5-4 Alaves
This game was meant to be a clash of styles - Liverpool kept seven clean sheets in 10 matches en route to the final, while free-scoring Alaves found the net 31 times in as many games - but it quickly descended into defensive anarchy and riotous entertainment.
Early goals from Markus Babbel and Steven Gerrard appeared to have set Gerard Houllier's side on the way to an easy win, and they went into half-time 3-1 head following an Ivan Alonso strike for the Spaniards and a Gary McAllister penalty.
But Alaves came roaring back, with the competition's top scorer Javi Moreno rifling two quick goals within five minutes of the restart. Robbie Fowler put Liverpool 4-3 ahead, but ex-Manchester United man Jordi Cruyff scored with two minutes left to send the game to extra-time.
Alaves were reduced to nine men by red cards shown to Magno Mocelin and Antonio Karmona, while both sides had a goal disallowed. With penalties looming, Delfi Geli inadvertently settled it with a Golden Goal, deflecting a McAllister free-kick past Martin Herrera to complete a treble of League Cup, FA Cup and UEFA Cup for Houllier's men.
1957 Division Two - Charlton Athletic 7-6 Huddersfield Town
To say thirteen-goal thrillers are a rarity is somewhat of an understatement, but anyone who was present at The Valley just before Christmas in 1957 was lucky enough to witness one.
Having been reduced to 10 men early in the game, hosts Charlton found themselves 5-1 down with 27 minutes left on the clock and were starring down the barrel of a heavy defeat.
But a simply incredible turnaround saw the Addicks find the back of the net six times before the final whistle, while Huddersfield could only reply with one of their own. It ended 7-6 and Huddersfield remain the only team in Football League history to score six goals and end up the losing side.
1954 World Cup quarter-final - Austria 7-5 Switzerland
See Arsenal and Reading — you're 5-4 score is not unique. It also happened at the World Cup when the 1954 hosts Switzerland met neighbours Austria in Lausanne.
The Swiss were 3-0 up after 20 minutes due to a three-minute blitz in which Robert Ballaman's goal was quickly followed by a brace from Sepp Huegi. Austria responded with brute force, Theodor Wagner and Robert Koerner scoring two each and Ernst Ocwirk adding another.
Ballaman pulled one back to incredibly make it 5-4 at half-time. Wagner completed his hat-trick to restore Austria's two-goal lead after the break, with Huegi following suit just before the hour mark. The Lausanne crowd then had to wait a full 18 minutes before Erich Probst scored the 12th and final goal of a ludicrous match and ensure Austria progressed.
Probst scored again in the semi-final but, unfortunately for him, eventual winners West Germany put six past them.
2003 Champions League - Monaco 8-3 Deportivo La Coruna
"Unthinkable" was how coach Didier Deschamps described this mauling in Monte Carlo; the aggregate 11 goals setting a Champions League record that may never be beaten.
Even more amazingly, Monaco's destroyer-in-chief was Dado Prso, celebrating his 29th birthday. The Croatian netted a first-half hat-trick, and scored a fourth on 49 minutes. Jerome Rothen, Ludovic Giuly, Jaroslav Plasil and Edouard Cisse scored Monaco's other goals, while Diego Tristan (two) and Lionel Scaloni were on target for Depor, who took off goalkeeper Jose Molina at half-time when trailing 5-2.
Both sides ended up qualifying from Group C; Depor pulled off one of the greatest comebacks ever to knock out Milan in the quarter-finals, while Monaco toppled Real Madrid and Chelsea on their way to the final, where they lost to Jose Mourinho's Porto.
1938 World Cup first round - Brazil 6-5 Poland
Eleven goals in 120 thrilling minutes in a rain-sodden Strasbourg mark out Brazil's clash with Poland as one of the most entertaining of all World Cup clashes.
With the emphasis very much on attack from the off, Brazil striker Leonidas got the scoring underway on 18 minutes and his side took a 3-1 lead in with them at half-time. A downpour during the break played into the Poles' hands and they began a stirring comeback after the restart and found themselves level at 3-3 by the hour mark.
Peracio restored the South Americans' lead in the 71st minute, only for Ernest Wilimowski to force extra-time with his third of the day late on. But Leonidas grabbed another two goals (93, 104) to effectively settle the tie and not even a fourth for Wilimowski as time ran out could alter the outcome of a truly sensational match.
2012 Torbay Sunday League - Wheel Power FC 58-0 Nova 2010 FC
Believed to be the biggest thrashing in British football history. Nova 2010 FC suffered a crushing 58-0 defeat against local rivals Wheel Power FC in the Torbay Sunday League in Devon.
It started badly for Nova and got worse as they went in at the break losing 20-0 before conceding another 38 goals after the break. Nova arrived at the ground with just five players but they rounded up another four and played with nine men against the league leaders, who started with 10.
Brothers Robbie and Stuart Bowker were the heroes for Wheel Power as they scored 28 goals between them with Robbie finding the net 18 times and Stuart banging in 10.
Stuart said: "At 50-0 they'd had enough but the referee told them they must carry on playing or they would risk being fined.
2002 Madagascan League - AS Adema 149-0 SO l'Emyrne
The final day of the 2002 season produced by far the biggest win in history.
Remarkably, none of the Adema player scored as Emyrne - the defending national champions, no less - netted own-goals at a rate that Jamie Carragher could only dream of.
Farcical scenes ensued following a dispute with the referee that resulted in Emyrne coach Ratsimandresy Ratsarazaka ordering his players to put through their own net while the bemused Adema players looked on.
The result did not please fans of Arbroath, whose 36-0 over Bon Accord was the previous record, and the Madagascan authorities were even less impressed, banning Ratsarazaka and four players.
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