Boss Paul Ince was furious after seeing his Blackburn Rovers side beaten 3-2 at Portsmouth, having come from two goals down to draw level in the second half.
Strikes from Matt Derbyshire and Tugay put Rovers back on terms at Fratton Park, only for Sean Davis to net a late winner for the home side and leave Rovers down in 19th place in the Premier League.
Ince commented: "I'm frustrated and disappointed.
"There's nothing wrong with the spirit here. You can ask the players, I don't have to speak for them.
"We were by far the better side in the first half, but we missed three good chances.
"Peter Crouch missed one for them with a header just before half-time, but we didn't learn from that and let him have the same space to score their first goal.
"If you are asking about spirit I think we showed plenty of that coming back from 2-0 down. Matt Derbyshire got a brave header when he came on and, after Tugay got the equaliser, it looked like only one team was going to win it.
"We are playing well but not getting results and I'm tired of saying that week after week.
"Again we forgot you have to keep the door shut at the back and not only at the back but the whole team defensively.
"To see (Papa Bouba) Diop ghosting past three of my players like that (to set up the winner) was, well, ridiculous."