Nottingham Forest manager Martin O'Neill was left disappointed by his side's performance in the 2-0 defeat at Stoke City this afternoon.
The Reds' play-off hopes were knocked by the reverse at the bet365 Stadium and O'Neill admitted he was frustrated that his side were unable to build on Monday's East Midlands derby victory.
Speaking after the game he said: "No question that it was a disappointing afternoon for us. We were terrific against Derby on Monday night but today we conceded a poor early goal from our point of view and unfortunately we were never able to retrieve it.
"You always expect the home side to be on the front foot from the start but the goal obviously gave them a big lift. I didn't think there was a lot between the two teams this afternoon but we didn't do enough to take anything from the game.
"I said during the week that any negative result knocks you back a bit and you have to follow it up with a victory. We've got a very important home game against Hull City next weekend and it is vital that we respond.
"I genuinely don't know why Roy (Keane) was shown a yellow card and I've not had time to ask the referee yet. Yellow cards used to be given out on the pitch but now it seems like they are shown everywhere."