Injury-plagued paceman Simon Jones has been forced to delay his latest comeback from injury until the end of the month.
Jones had hoped to return to action for Worcestershire in their LV County Championship match with Yorkshire at New Road starting on June 16.
However, Jones' rehabilitation from knee surgery has been slower than expected and he has been sent for scans to discover if there is a further problem.
The 30-year-old has now been pencilled in for a Pears return in their Second XI Trophy game with MCC Young Cricketers at Radlett on June 30 for his first action of the campaign, although they are still awaiting the results of the scan.
One of England's 2005 Ashes heroes has had a torrid time with injuries ever since the end of that epic series against Australia, and there still seems to be some way to go.
Worcestershire Director of Cricket Steve Rhodes confirmed: "Simon's rehab has been slower than we expected and he has gone for a scan to assess where he is at.
"We are now hoping he can play in the Second XI Trophy game at the end of the month."
Jones picked up 42 Championship wickets in nine games in his first season at Worcestershire last summer and helped them gain promotion to Division One.
But the former Glamorgan player underwent knee surgery in September after missing the final month of the 2008 season and had to again go under the knife at the start of the current campaign.
His absence, along with that of hamstring victim Kabir Ali, has been a key reason why Worcestershire are propping up the table without a win in four games ahead of Thursday's clash with Sussex at New Road.