Arsene Wenger has blamed poor officiating for his side's 2-1 defeat to Manchester City at the Etihad Stadium on Sunday.
The Gunners were impressive in the first half but fizzled out after the break and fell to another defeat following Wednesday's defeat to Everton.
Wenger slammed center referee, Martin Atkinson for his performance in the game and stated that both City goals should have been ruled out for offside.
"Of course I'm disappointed and frustrated. We had a very good first half. We got caught cold,'' Wenger said during his post match chat.
" Today, we conceded two offside goals, it's difficult to accept. I believe there is a lot going on regarding bad refereeing decisions.
"It's hard going into a game like that and you get decisions against you.They are professional and we are professional and have to stand up for our mistakes.
" The first goal gave them a lot of hope. After that we suffered for 20 to 25 minutes.
"On Tuesday (in the 2-1 defeat against Everton) we suffered on set pieces . Today we we were unfortunate. What can you about offside goals."
Arsenal dropped to fourth position with the defeat, while City now sit in second position in the table.