Szczesny held his hands up for that second goal but he had no complaints about Tottenham's first - scored by Rafael van der Vaart - despite claims that the Dutchman handled the ball before finding the net.
"I didn't see the handball, I thought he controlled it and finished very well," the Pole told arsenal.com. "It was a good finish.
"The second goal I was very disappointed in myself - I shouldn't get beaten from that kind of distance so I will take that myself.
"There was a lot of movement on the ball and I reacted too late. I got a touch on it but it wasn't strong enough. I blame myself for the second one but other than that I didn't think the team deserved to lose the game."