Derbyshire are on the lookout for a new overseas bowler after Australia's Billy Stanlake was ruled out for the season.
Stanlake played his first game for the county against Essex last week, taking 2-91 against the defending champions, but sustained a stress fracture in the process.
With the paceman heading back home for rehabilitation, Derbyshire are seeking to fill the void at the heart of their attack.
Head of cricket Dave Houghton said: "We're hugely disappointed that we won't get to see more of Billy this year.
"He's been a model professional during his time with us and we wish him all the best in his recovery.
"Our search for a replacement has already begun and we are hopeful of bringing in another bowler in the not too distant future who can contribute in all formats this summer."