The Arsenal manager saw his side go down 3-1 at the Etihad Stadium on Sunday, with Kevin De Bruyne's 19th-minute opener followed in the second half by a Sergio Aguero penalty and a controversial Gabriel Jesus strike.

Wenger disagreed with referee Michael Oliver's decision to award the spot-kick after Nacho Monreal barged into Sterling, while television replays suggest David Silva received the ball in an offside position before setting up Jesus' goal.

Speaking to television broadcasters after the game, Wenger said: “I believe it was no penalty. We know that Raheem Sterling dives well, he does that very well. And the third goal was offside. I am very upset because at 2-1 we were in the game.

“The third goal was the killer and it is by coincidence that mistakes always go for the home team, as we know.”

In his post-match press conference, he added: “You have seen what I've seen, you judge how you want. The fact you tell me it is an offside goal is enough.

Manchester City vs Arsenal player ratings Show all 23 1 /23 Manchester City vs Arsenal player ratings Manchester City vs Arsenal player ratings Manchester City vs Arsenal Who impressed as Pep Guardiola's side beat Unai Emery's at the Etihad Stadium? The Independent Manchester City vs Arsenal player ratings Ederson - 8 out of 10 Came off his line superbly to beat Aubameyang to the ball. Little he could do to prevent Koscielny’s equaliser. Getty Manchester City vs Arsenal player ratings Kyle Walker - 6 out of 10 An improvement on some recent performances. Comfortable when in a back three after playing the same role with England. Getty Manchester City vs Arsenal player ratings Nicolas Otamendi - 6 out of 10 A forceful presence at the back, sometimes too forceful. One robust first-half challenge on Lacazette went unnoticed. Getty Manchester City vs Arsenal player ratings Aymeric Laporte - 7 out of 10 Picks up a rare assist, crossing for Aguero’s first, then saw a goal disallowed for offside. Covered well for Sterling, who was alone on the left flank. Getty Manchester City vs Arsenal player ratings Fernandinho - 7 out of 10 Initially struggled to exert his usual control over the midfield in the first half, perhaps because he had to keep dropping back into defence, but improved. Getty Manchester City vs Arsenal player ratings Bernardo Silva - 7 out of 10 Out of position on the wing and less influential than he often is in a central role but still troubled Arsenal’s left side. Getty Manchester City vs Arsenal player ratings Ilkay Gundogan - 8 out of 10 Almost faultless when distributing the ball. A delicate chip over the top of the defence in the build-up to Aguero’s goal was his best. Getty Manchester City vs Arsenal player ratings David Silva - 7 out of 10 Not masterful from Il Mago but an all-round improvement on his display at St James’ Park, sprinkled with the odd special touch or pass. Getty Manchester City vs Arsenal player ratings Kevin De Bruyne - 6 out of 10 Did not have his usual influence on the game. An off-day though hardly anything to be concerned about. Getty Manchester City vs Arsenal player ratings Raheem Sterling - 8 out of 10 Created two of Aguero’s three, ghosting superbly behind Lichtsteiner for the second. Asked to cover the entire left flank but did not look out of place. Getty Manchester City vs Arsenal player ratings Sergio Aguero - 9 out of 10 Header, right foot, left arm. An unconventional hat-trick but his 14th in City colours. The wrong side of 30 now but his predatory instincts have not waned. Getty Manchester City vs Arsenal player ratings Bernd Leno - 6 out of 10 Dives too early and the wrong way for Aguero’s first but denied City impressively on several occasions after it. Getty Manchester City vs Arsenal player ratings Stephan Lichtsteiner - 5 out of 10 Caught out by Sterling’s intelligent movement, particularly on City’s second. Arsenal’s third-choice at right back and it showed. Getty Manchester City vs Arsenal player ratings Shkodran Mustafi - 6 out of 10 Equalises from Torreira corner, Monreal flick-on, but culpable for letting Aguero go at the far post for City’s crucial second. Getty Manchester City vs Arsenal player ratings Laurent Koscielny - 5 out of 10 Five yards behind the rest of the Arsenal defence for Aguero’s first, playing every City player onside, though perhaps did not anticipate Iwobi’s error. Getty Manchester City vs Arsenal player ratings Nacho Monreal - 7 out of 10 Neat near-post flick-on for Koscielny’s equaliser. Coped well enough with Bernardo despite being given little support. Manchester City vs Arsenal player ratings Alex Iwobi - 5 out of 10 Dispossessed deep in his own half by Laporte. Attempted to make up for his mistake and was tidy enough, though did little to atone. Getty Manchester City vs Arsenal player ratings Lucas Torreira - 8 out of 10 Made several key interceptions and tackles, especially as momentum shifted towards Arsenal in the first half. Getty Manchester City vs Arsenal player ratings Matteo Guendouzi - 7 out of 10 Poor start but did not hide and grew into the game as it went on. Largely shut down City’s midfield with Torreira until the game got away from Arsenal. Getty Manchester City vs Arsenal player ratings Sead Kolasinac - 6 out of 10 Stationed at left midfield but perhaps too adventurous for his full-back’s liking, with Monreal left one-on-one with Bernardo too often. Getty Manchester City vs Arsenal player ratings Alexandre Lacazette - 6 out of 10 Him and Aubameyang were sat strangely deep, bulking up Arsenal’s midfield, and this affected his ability to get forward. Getty Manchester City vs Arsenal player ratings Pierre-Emerick Aubameyang - 6 out of 10 As with Lacazette, often too deep to threaten, though a little brighter than his partner and Arsenal’s main threat on the counter-attack. Getty

“I don't want to take anything away from their quality but it happened at a moment when we were reading the game at 2-1 and it killed the game. It's the second year we come here, we got two offside goals last year and one again this year.

“Can anyone stop them? It will be difficult this season, the way they have started, the quality they have, but you never know,” the Arsenal manager added. “If on top of that they have decisions at home like that, they will be unstoppable.”

Wenger also defended Alexis Sanchez's performance at the Etihad, despite the Arsenal forward enduring a difficult afternoon in Manchester.

Sanchez was the subject of two ultimately unsuccessful transfer bids by City in August and played at the Etihad for the first time since the summer saga.

“In a difficult moment of the game he did very well,” Wenger said. “He was on his own up front in the first half but had not enough support. Overall, I think he has done everything.