Slovakia could have boosted their chances of World Cup qualification with the home clash against Lithuania at the weekend, but a 1-1 draw has left them third in Group G - five points behind leaders Bosnia-Herzegovina.
Skrtel reflected: "It is a pity and we are really disappointed.
"We could have and should have won since we had five to six really good chances to score. I don't know what happened.
"We knew what to expect from them and the loss of points is not good for us. It will be very hard now to progress."