Somerset wicketkeeper Craig Kieswetter has been ruled out of action for up to six weeks after breaking his thumb.
The 25-year-old sustained the injury during the final day of the drawn County Championship match against Warwickshire at Taunton on Sunday and the club have confirmed a fracture to his right thumb following X-ray results.
Director of cricket Dave Nosworthy said: "Obviously this is very disappointing for us at this stage of the campaign but it is also disappointing for Craig.
"This was a freak accident and with him in such good form and in a good frame of mind with the bat and gloves, it has come at a bad time.
"However, he goes about things in a professional way and with a good rehabilitation programme already planned we will have him back as soon as possible."
Jos Buttler, who replaced Kieswetter as England's limited-overs keeper this winter, took over the gloves for Somerset against the Bears and is now set for an extended stint behind the stumps.
The news also deals a further blow to what were already slim hopes of Kieswetter making England's Champions Trophy squad.
Kieswetter was named in the 30-man shortlist by England but with Buttler and Jonny Bairstow ahead of him in the pecking order he was included largely as back-up.