Nottinghamshire bowler Luke Fletcher will not play again this season after doctors advised a prolonged period of rest following a sickening blow to the head in Saturday's T20 Blast fixture with Birmingham.
The 28-year-old was told by doctors that he had "dodged a bullet" after a straight drive from batsman Sam Hain struck him on the head.
Fletcher underwent an assessment and received treatment at Edgbaston before being taken to hospital in Birmingham.
A statement from Nottinghamshire's director of cricket Mick Newell released on Wednesday said: "Following consultation with doctors, Luke has been ruled out for the rest of the 2017 season to allow adequate time to recover and complete a monitored care plan to ensure he has a safe return to play.
"Whilst we are all obviously very disappointed, Luke's health is of paramount importance and comes first.
"We will continue to give him every support as he undergoes his recovery."