Alistair Cook has said that injured bowlers Stuart Broad and Steven Finn will have to prove they are 100% fit if they are to play in the first Test against India.
The England captain told BBC Sport: "We must go into the game with a fully-fit attack.
"They have to be 100% because of how hot it is and flat the wickets are."
Stuart Meaker and Graham Onion could be brought into the side if Broad and Finn are unable to play.
The first Test gets underway in Ahmedabad on Thursday.