West Indies batsman Shivnarine Chanderpaul has had a scan after complaining of soreness in his side.
While the rest of the England and West Indies teams were kept waiting at rainy Edgbaston until a washout was confirmed on day one of the third Test, Chanderpaul went to hospital to seek a diagnosis.
A team spokesman was optimistic the delayed start might give Chanderpaul a chance of playing, and helping West Indies' bid to avoid a 3-0 series whitewash.
The spokesman said: "Shiv went to hospital for a scan.
"A day off gives him a chance to see how well he goes."