Manchester City manager Roberto Mancini has demanded his players take responsibility after seeing the defence of their Premier League title suffer a potentially fatal blow at Southampton.
The reigning champions headed to St Mary's on Saturday nine points behind leaders Manchester United and in desperate need of victory.
However, City buckled under the pressure, putting in what Mancini described as a "worse than poor" performance as Southampton ran out 3-1 victors.
United's victory over Everton on Sunday means City are 12 points behind with just 12 games remaining, and Mancini expects a response.
"When you play football and you are a top player, you should take your responsibility, always," said the City boss.
"It's not always the fault of the manager.
"The players should take responsibility - if they have big balls. If not, they can't play in a top team."