Sunderland boss Roy Keane accused his players of taking their eye off the ball after they conceded three minutes from time to lose 2-1 at home to Manchester City.
Keane slammed his players for believing their top-flight status was already secured after they allowed Darius Vassell to fire home an 87th minute winner at the Stadium of Light.
A low-key affair had burst into life 11 minutes from time with an Elano penalty, before Dean Whitehead pulled his side back on level terms soon after.
"All the players should be disappointed, we have got to do better," Keane fumed.
"If I've said it once, I've said it a million times: we've got hard work ahead.
"Maybe people took their eye off the ball because they have plugged into people saying we're safe and let's look at next season.
"We might have slackened of four or five per cent and you can't do it. We started badly, we keep making it hard for ourselves. I could have almost predicted what was going to happen.
"People need to start listening to me, not looking ahead to next season. We're in for some tough games."