England Twenty20 captain Stuart Broad is awaiting the results of a scan on his injured left heel, which will determine his availability to face India next week.
Broad suffered a recurrence of the injury, which first required a scan at the start of England's two-month tour, while he was practising in the Nagpur nets before the final Test against India.
The fast bowler, highly unlikely to play in the fourth Test after losing form mid-series, left practice after obvious discomfort and returned only briefly before heading off for more treatment.
England will be primarily concerned about his fitness for two Twenty20s in Pune and Mumbai next Thursday and Saturday.
Eoin Morgan is England's Twenty20 vice-captain and would be the obvious candidate to lead the team in Broad's absence.
The selectors may, however, need to replace Broad in an inexperienced 13-man squad which contains only three other specialist seamers.
Broad, who had a scan on his injury during England's second tour match against the DY Patil Academy in Mumbai last month, went on to play in the first two Tests.
It was thought initially that an update on his injury was likely on Tuesday, but none was forthcoming and it is now expected on Wednesday.