Mauricio Pochettino railed against refereeing decisions that went against Tottenham in Saturday's 2-0 defeat at Arsenal.
Strikes from Shkodran Mustafi and Alexis Sanchez consigned Pochettino to his first defeat in a north London derby, but the first goal in particular drew the Argentine's ire.
Davinson Sanchez was penalised for a foul on namesake Alexis. Although he appeared to win the ball, referee Mike Dean indicated it was for a shirt pull in the challenge.
Goalscorer Mustafi then appeared offside when man-of-the-match Mesut Ozil delivered a free-kick, with Pochettino also uncertain whether Alexandre Lacazette was onside before assisting the Gunners' second.
"The [awarding of the] free-kick [was wrong] and I think it's offside," Pochettino told Sky Sports.
"The first [goal], sure it's obvious and the second one maybe. But in this type of game when you play a team in the top six like Arsenal, the small details change the game and of course put the game in one side.
"This disappointed me but it's football. We need to accept sometimes it's against you."
Harry Kane and Dele Alli played for Spurs, having recovered from injuries that ruled them out of the international break, but both turned in sluggish performances before being replaced by Fernando Llorente and Son Heung-min with 15 minutes to go.
"They were OK to play," Pochettino said. "Of course, after 2-0 with 15 minutes to finish the game I think to take a risk is not necessary.
"We put Llorente and Son on fresh to score and we had chances. Dele Alli and Harry Kane, after 75 minutes, was enough for them."
|FA extends deadline for Manchester clubs to respond over alleged derby fracas|
|Wigan Warriors confirm Sarginson return|
|Magnificent Rohit doubles up as India hammer Sri Lanka|
|Dybala clever enough to listen to Nedved - Buffon|
|Willian not ready to walk out on Chelsea|
|Arsenal striker Lacazette not counting on title miracle|
|Fury licence to be considered by BBBofC in January|
|Sarginson released by Titans|
|World Cup glory worth €350,000 to Germany stars|
|All Blacks skipper Read to undergo back surgery|
|I live day by day - Buffon ponders Euro 2020|
|Remarkable Rohit smashes third ODI double-century|
|West Ham eyeing Wilshere swoop in January|
|Bairstow up to six in unchanged England team|
|Klopp reveals hamstring scare for Liverpool star Salah|
|England can still win Ashes as Hoggard urges Root´s men to smarten up|
|Vuelta champion Froome asked to explain drugs test|
|FFA refuses to speculate on Scolari amid Socceroos interest|
|Mavs spoil Leonard´s season debut, LeBron enjoys career-high night|
|Ronaldo hoping to play with Benzema and Bale again|
|Smith: Pitch conditions in Perth to determine Handscomb fate|
|Packers star Rodgers cleared to return against Panthers|
|Mourinho takes aim at reporters as Man United boss leaves news conference|
|You can put the kickoff back at the 30 – Hester announces retirement|
|Roberts confirms Dodgers were ´very in tune´ with Stanton, Ohtani|
|Fleury set for Golden Knights return after two months in concussion protocol|
|Dodgers All-Star Seager set to avoid elbow surgery|
|´Bull****´ to suggest Chelsea can catch Man City – Conte|
|Pordenone would´ve deserved Coppa Italia progression, admits Spalletti|
|Azarenka granted wildcard for Australian Open|
|Root urges England to stand up and put things right|
|Man City haven´t won anything yet – Gundogan|
|Pierre leads Dinamo Sassari past Pinar Karsiyaka|
|Willian: Chelsea will keep fighting for Premier League title|
|Burnley aren´t the real deal – Dyche|
|Stoger wants to bring best out of BVB after breakthrough victory|
|Conte praises contribution of Hazard, Willian and Pedro|
|Inter 0 Pordenone 0 (AET, 5-4 on penalties): Nagatomo spares Serie A leaders´ blushes|
|Hodgson keeping Palace grounded despite dramatic late win|
|Zouma injury led to Turf Moor defeat – Hughes|
|Guardiola steers carefully around Mourinho criticism after United v City flashpoint|
|Guardiola considering January signings to bolster Manchester City squad|
|Get me in the mix – Ricciardo wants to join Vettel, Hamilton rivalry|
|Crystal Palace 2 Watford 1: Sako, McArthur stun Hornets|
|Huddersfield Town 1 Chelsea 3: Willian sparkles as Conte´s side return to winning ways|
|Burnley 1 Stoke City 0: Hosts go fourth after late Barnes winner|
|PSG escape punishment as LFP gives Lille transfer ban|
|Mainz 0 Borussia Dortmund 2: Stoger´s tenure begins with much-needed victory|
|Need to wrap a golf club for Christmas? Don´t ask Dustin Johnson for help|
|Ten Cate: Al Jazira will park three buses against Real Madrid|
|Gremio 1 Pachuca 0 (after extra time): Everton stunner sends Brazilians into final|
|Zidane focused on Club World Cup despite looming Clasico|
|Ibrahimovic brands Guardiola ´immature´ over Barcelona row|
|Gayle´s 18 sixes a new T20 record|
|Pogba has no regrets over rejecting Real Madrid|
|Gattuso denies contract rift with AC Milan goalkeeper Donnarumma|
|Where you at? Cleared Fury calls out Joshua|
|Pochettino: Alderweireld out until February|
|Wydad Casablanca 2 Urawa Red Diamonds 3: Marvellous Mauricio double proves decisive|
|Cardona given five-match ban for ´discriminatory´ gesture against South Korea|
|Fury clears comeback hurdle as UKAD proceedings resolved|
|Knee injury rules Wales´ Faletau out of Six Nations|
|James still settling at Bayern, says Heynckes|
|Pistorius bruised in alleged prison assault|
|Manchester City captain Kompany out for ´a short time´|
|Klopp: Liverpool need Lallana ahead of busy period|
|Spurs list Leonard as probable for season debut|
|It was diversity in education – Mourinho addresses derby fracas|
|I encourage City to celebrate - Guardiola defends players after Old Trafford controversy|
|I´m no actor – No regrets for Klopp over heated interview|