Sesko volleyed home to cancel out West Ham's opener struck by Tomas Soucek.
Speaking to TNT Sports after the game, Sesko said: "I'm happy with my finish, but yeah, I'm not so happy with the draw, because I know we deserve the win, because we were fighting.
"Unfortunately, just the days come when you are a bit unlucky. Maybe the intensity was not exactly where it should be.
"But yeah, we were fighting in the end. We got a draw, which was really important."
On producing another late moment to rescue a point, Sesko also stated: "We're playing for each other, doing everything together.
"When difficult moments come, we are stepping together, which is really important, and can lead to the results, like they are right now."
