Midfield star Lampard is struggling with a hernia problem and looks set for surgery, whereas skipper Terry has a hamstring strain.

"He (Lampard) will need surgery this week, Tuesday or Wednesday. He will not be able to play for England. We have told England," Chelsea manager Carlo Ancelotti said after his side's third straight league win.

"In one or two weeks he will be back. It's very easy surgery. He needs to do it because he was starting to feel pain."

"John Terry has tonight been ruled out of England's next two games due to injuries to his right hamstring and glute muscles," Chelsea's website said.

"John has spoken personally to the England management team, and Chelsea and England medical staff have also been in touch."