Jol felt his side deserved a victory in the game.
Leonardo scored the only goal of the game for the Dutch visitors.
“We were dominant in the first half especially and we really should have scored during that phase,” said Jol. “We would have made life much easier for ourselves that’s for sure.
“Ajax didn’t really contribute much to the game but they were always ready to pounce and took their chance very well.
“Everything is still possible in our group but we definitely need to step up our game against Prague and Aston Villa in order to get the necessary points.”
