"David's okay but he's tired. I said to him I wasn't going to take him off, I don't know why but me and Gus just fancied him to score.
"He's really tired and so is Kish. He's another one who's worked extremely hard and was fantastic for us as well.
"People expect so much of Healy because of what he's done for Northern Ireland. This is what happens when you score at international level and perform very well.
"Everyone expects you to do it week in, week out. Unfortunately with us he's hit crossbars, he's hit posts, he's hit everything possible and it's not fallen for him at club level.
"But it has now in the last two matches, as he got one at Southend."