Former Chelsea midfielder Frank Lampard has claimed that "something has to change" at Stamford Bridge following the team's ninth Premier League defeat of the season.
Jose Mourinho's side are just one point above the relegation zone following Monday night's 2-1 defeat to the Foxes at the King Power Stadium.
After the game, Mourinho said that he felt "betrayed" by his players, and Lampard has questioned whether the Portuguese coach has lost the dressing room.
"They're good players," Lampard said during Sky Sports' Monday Night Football. "Far too many are underperforming and they have been for a while.
"Chelsea, in a bad year, should be top six - still there or thereabouts. Where they are at the moment is impossible. I don't know whether he's lost them but something has to change right now, whether it's the attitude or the performance."
The Blues have only won four of their 16 league games this season.
