Martin O'Neill believes his side were beaten by the better team but will keep on fighting after his sides 3-1 defeat against Aston Villa this evening.
Despite an early opener from Colback, three Villa goals secured the points for the visitors, and the Forest boss assessed his sides defeat.
Speaking after the game, O'Neill said: "I think that Villa were pretty strong, my quibble is maybe the goals that we gave away.
"We got off to a great start, Lolley's run was reminiscent of a Premiership player and we get in front. But we are not in front long enough really and we concede, from our viewpoint, not the best goal in the world and Villa got a bit of momentum and kept it going by getting a second one.
"I thought we had equalised just after half-time when Benalouane was adjudged to have fouled and then their third goal is a killer blow for us."
The result leaves The Reds three points off the play-offs and O'Neill is keen for his side to quickly put the result behind them and focus on another big game at Ipswich Town on Saturday.
He added: "We are in the hunt, very much still in the hunt and we have to go and try and win on Saturday, it's a big game for us. Tonight we just have to lick our wounds and get on with it.
"We have to come and fight again, Villa are a strong side themselves and played very well and, at the end of it all, deserved to win.
"We are disappointed, we are down, but we are not beaten yet."