John Stones missed England training on Wednesday morning through illness.
But Albion skipper Lewis Dunk was again involved as the build-up to Euro 2024 continues.
Boss Gareth Southgate has had to deal with several absentees and fitness concerns in the build-up to Euro 2024.
Video from Tuesday's training session
All 26 players were able to train on Tuesday - their first session after arriving in Germany - including Stones, who went off with an injury in Friday's friendly against Iceland.
But while the defender appears to have avoided injury, he was absent from training today due to illness.
The remaining 25 squad players trained at their Spa & GolfResort Weimarer Land base as preparations for Sunday's Group C opener against Serbia continued.
Stones is expected to start, if fit, with Dunk and Marc Guehi seemingly competing to partner him.
Left-back Luke Shaw will miss the first group match.
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