Wicket-keeper Matt Prior has been ruled out of Sussex's LV= County Championship Division One match with Lancashire, which gets underway on Sunday.
The 32-year-old is hoping to win his England place back this summer but he has been struggling with an Achilles injury.
And Prior is running out of time to convince the selectors he should be in the squad for the first Test against Sri Lanka, which starts on 12 June.
Prior began the campaign playing as a batsman only and scored a hundred against Middlesex in April but then missed a pair of matches.
It was hoped that he could again play as a specialist batsman in the coming days at Old Trafford but he has not been named in the travelling squad due to the Achilles problem.
Prior is one of England's greatest ever wicket-keeper/batsmen and averages 40.83 in his 75 Tests, with seven centuries.
However, he was dropped after struggling in the first three Tests of this winter's 5-0 Ashes hammering at the hands of Australia, Yorkshire's Jonny Bairstow selected to replace him.
Bairstow himself has been struggling with a broken thumb but he is scheduled to return to action against Durham on Sunday.