Mauricio Pellegrino has warned his Southampton players he is ready to ditch anyone that is not fully committed to the club.
Pellegrino was forced to apologise to Saints fans on Wednesday night after his side endured a humiliating 4-1 defeat at home to Leicester.
Southampton were three down at half-time at St Mary's and their abject display earned them a chorus of boos at the end.
They now face a trip to third-placed Chelsea on Saturday and Pellegrino admits he has had to remind his players of their responsibilities.
"When I talk about a lack of connection it is when you are not mentally 100 per cent on the pitch," Pellegrino said.