England fast bowler Stuart Broad has been sent for a scan after a recurrence of his heel injury.
Broad, who didn't play in the third Test against India in Kolkata, suffered ongoing discomfort during practice on Tuesday.
The injury has cast his participation in the final Test in Nagpur, which gets underway on Thursday, and the Twenty20 International series against the same opposition in doubt.
The visitors' seam ranks are well stocked, with right-armer Steven Finn likely to retain his place for the Test series decider, but Broad's absence from the T20I fold would necessitate the naming of a new skipper. Batsman Eoin Morgan is currently England's Twenty20 vice-captain.
Broad or Morgan will lead a squad without the rested Graeme Swann and Kevin Pietersen and sans the services of head coach Andy Flower, batting coach Graham Gooch and team manager Phil Neale, who are all returning home at the conclusion of the Test series. Assistant coach Richard Halsall will take charge for the T20Is.
Tuesday's training session allowed the tourists their first look at the Vidarbha Cricket Association Stadium's pitch, which has been free of water since Sunday and is expected to assist the spinners by day two.