England spinner Ashley Giles has been ruled out of the Test series against Sri Lanka starting next month because of a groin injury.
He will undergo surgery on Tuesday to repair the problem, his second visit to the surgeon in four months after he had an operation on his right hip last December.
His rehabilitation was stunted in February and he missed the recent tour of India.
"In light of the lack of progress with Ashley's rehabilitation from hip surgery, his surgeon recently recommended an opinion was sought from a hernia specialist," ECB chief medical officer Peter Gregory said in a statement.
"The view of this specialist, who was consulted last week was that Ashley has developed a defect known as a Gilmore's Groin, which could account for the pain he suffers after he runs."
"Ashley will undergo surgical repair in the near future. It is hoped that this will enable him to return to cricket later this season."