Paolo Di Canio criticised referee Martin Atkinson after he ruled out Jozy Altidore's goal in Sunderland's 3-1 defeat against Arsenal.
Sunderland were 2-1 down at the Stadium of Light when Altidore netted, but Atkinson had already blown for a foul on the United States international by Bacary Sagna outside the area.
Di Canio, who was later sent off for protesting against perceived time-wasting by Arsenal, was also angry that Sagna was not sent off for preventing a clear goalscoring opportunity, given that Altidore's shot did end up in the net.
"This is a big mistake, it's obvious," Di Canio told BBC Sport. "This is not Paolo Di Canio's opinion. The referee has to wait and see how the action finishes.
"When it is body to body with Jozy Altidore and Bacary Sagna, he has to wait until how it finishes and not stop the game. It was a clear big, big mistake.
"I didn't protest because a mistake can happen. But he has to realise that he made a mistake which can cost us three points."
The Italian's dismissal to the stands came when he exhorted Atkinson to make Arsenal's physiotherapist hurry up during an injury stoppage.
"You know that if you lose two minutes (to an injury stoppage) they are never going to replace them," said Di Canio.
"(Atkinson) came to me and said if you keep going with your manner I will send you up to the stand. I said to him 'if you want to complete a perfect job, you send me off.' He took it seriously and sent me off. Next time I will not invite the referee to send me off."
Altidore also felt that his strike should have been allowed.
"I was just tussling back and forth with Bacary Sagna but I thought the referee was going to let us play," he said.
"I got the better of him and then finished it off but I didn't hear the whistle and it was brought back.
"The keeper didn't either as he played 100 per cent and I think Kieran Gibbs tried to clear it too. It was a good time to score and it would have been a good reward for us."
|Coach: P. Di Canio|
for D. Vaughan 46'
for C. Mavrias 71'
for S. Fletcher 77'
|Samaras attracting Lazio interest|
|Premier League Preview: Liverpool v Cardiff City|
|Rodgers backs Mackay at Cardiff|
|Foster back fit and raring for West Brom recall|
|De Boer agent denies Tottenham contact|
|Premier League Preview: Crystal Palace v Newcastle United|
|Hungary appoint Pinter as new coach|
|Iniesta signs new Barca contract|
|Rodgers coy over Suarez talks|
|Jagielka hopes for fresh faces at Everton to help top-four push|
|A-League: Central Coast 1 Wellington 0|
|Spain end top of FIFA rankings for sixth year running|
|Allardyce disappointed to draw Manchester City|
|Pascoe hails ´unbelievable´ Suarez|
|Vorm knee surgery brought forward|
|Blanc hails Cavani brace|
|Michu wants Aspas to join Swansea City|
|Hoeness plays down Bayern treble suggestions|
|Dzeko confident he can fill Aguero void|
|Moyes: No loan offers for Zaha|
|Kiessling calls for Leverkusen response|
|Matuidi: Cavani on par with Ibrahimovic|
|Yeboah set to join Borussia Monchengladbach|
|Rooney a ´chance´ to face West Ham|
|FIFA Club World Cup Preview: Bayern Munich v Raja Casablanca|
|Benzarti praises ´extremely talented´ Raja Casablanca|
|Ranieri unsure over Falcao return|
|Coupe de La Ligue Wrap: Cavani leads PSG to dramatic win|
|Copa del Rey Wrap: Real Madrid through as Sevilla crash out|
|Tottenham job appeals to Sherwood|
|Sherwood gutted after defeat|
|Hughes: United worthy winners|
|Moyes pleased to see United weather storm|
|Allardyce hails West Ham fight|
|Coppa Italia: Juventus 3 Avellino 0|
|Manchester clubs kept apart in League Cup semi draw|
|League Cup: Tottenham 1 West Ham 2|
|League Cup: Stoke City 0 Manchester United 2|
|FIFA Club World Cup: Raja Casablanca 3 Atletico Mineiro 1|
|Sheffield Wednesday, Wigan abandoned due to heavy rain|
|United face anxious Rooney wait over injury|
|Messi making good progress|
|Ramos ban overturned|
|Osvaldo charged by FA|
|In-demand Ince offered new Blackpool deal|
|Molde confirm Solskjaer approaches|
|Kramer keen to continue home record|
|Rodgers: Henderson has potential to get even better|
|Ruiz on Anderlecht´s radar|
|Swansea, Hull fined by FA over player behaviour|
|Leeds keen on re-signing Gradel|
|Leverkusen announce Ryu deal|
|Ribery named Bundesliga Player of the Year|
|Moyes: No Zaha interest|
|Barcelona, Real Madrid in European Commission investigation|
|Basel: No Tottenham approach for Yakin|
|Chelsea set for Guarin bid, agent claims|
|Lewandowski has Dortmund goal concerns|
|Pogba, Pirlo will not sign before Christmas, says Marotta|
|Guardiola convinced to join Bayern after ´meat´ and greet|
|Martinez: Everton seen as a ´perfect´ loan destination|
|Anderlecht ´perfect´ for Defour, says Van Holsbeeck|
|Watford appoint Sannino|
|Sakho feels ´lucky´ to play with Suarez|
|Lippi: Too many teams competing in Club World Cup|
|Moyes ´told Welbeck to learn from Rooney´|
|I would kill myself over match-fixing, says Gattuso|
|Hughes dismisses calls for Januzaj protection|
|Aguero ´could miss up to two months´|
|Guardiola lauds Ballon d´Or nominee Ribery|
|Liverpool open Suarez contract talks|
|Copa del Rey Wrap: Barcelona, Levante cruise through|
|A-League Preview: Derby date beckons for winless Heart|
|Pearson upbeat despite Leicester defeat|
|Poyet urges Sunderland to build on Chelsea win|
|Mourinho rues missed chances|
|Pellegrini proud of professional Manchester City|
|Bayern on another level, says Beckenbauer|
|League Cup: Sunderland 2 Chelsea 1 (aet)|
|League Cup: Leicester City 1 Manchester City 3|
|FIFA Club World Cup: Guangzhou Evergrande 0 Bayern Munich 3|
|Zenit and Olympiacos punished with partial stadium closures|
|Sherwood wants positive reaction|
|Ancelotti expected La Liga title fight|
|Moffat charged over betting allegations|
|Wilson appointed at Barnsley|
|Wilshere charged by FA|
|Gattuso determined to clear his name|
|Moyes slams sacking culture|
|Mackay refuses to resign despite owner criticism|
|Redknapp reluctant to take Taarabt back|
|Amat pleased with development|
|Hughes optimistic of League Cup progression|
|Perez: No bids for Di Maria|
|FIFPro demand transfer system overhaul|
|Edwards sacked by Perth Glory|
|Allardyce not fearing the sack|
|Howson commits to Norwich|
|Tevez resigned to Argentina snub|
|SFA uphold Butcher´s one-match ban|
|Zapata rules out United switch|
|European Ombudsman calls for action on Spanish tax complaint|
|Albrighton eyes new Villa deal|
|Bale to miss Copa del Rey clash with ´small injury´|
|Pardew will bide his time in January|
|Kreuzer confident of Hamburg improvement|
|Van der Sar: Moyes can turn United around|
|Maradona backs Ronaldo for Ballon d´Or|
|Tottenham warned off Klinsmann|
|Costa Rica Primera Division: Alajuelense 0 Herediano 0|
|Lyon wary of Chornomorets Odesa|
|Guardiola talks up Lippi, Evergrande|
|Chile Primera Division Wrap: Chile, Deportes Iquique reach final|
|Garcia laments defensive mistakes|
|La Liga: Real Valladolid 3 Celta Vigo 0|