Defoe insists they can bounce back from the 3-2 reverse.
He said: "You have still got to be positive and think if you get a goal back then you have got a chance. It is football, anything can happen.
"I thought we played well and in the second half I thought we were the better side. We created a lot of chances.
"We were 2-0 down and to come back was great, but I would definitely say we didn't deserve to lose the game."