Derbyshire have decided to release seam bowler Mo Sheikh and off-spinner Andy Gray at the end of the season. They are aged 33 and 32 respectively and Director of Cricket Dave Houghton intends to concentrate on the club's younger talent next summer.
"It has been a difficult decision to release Mo and Andy," said Houghton.
"Both these players have been excellent members of our squad and made some key contributions in all forms of the game," he added.