The England seamer is still troubled by sore shins and Yorkshire's captain David Byas said: "Darren and Peter Hartley will both miss the festival although they are in our side for the Sunday League fixture with Derbyshire at Derby this weekend."
Yorkshire open the festival with the Northern Electric Trophy game against Durham, who will be without opening batsman Paul Collingwood for the rest of the season after a hand injury.
The 21-year-old Tynesider had an operation yesterday after tearing tendons from a bone while attempting a slip catch in a second team match at Chesterfield.
Kim Barnett's appeal to the English Cricket Board against a club fine has been postponed. The former Derbyshire captain was set to go to Lord's yesterday for a hearing into a pounds 1,500 fine for unauthorised media statements following the departure of Dean Jones as club captain earlier this season.
The Derbyshire general-manager, Stewart Edwards, said: "The ECB told us that they needed further information."Reuse content