Mark Footitt and Tony Palladino have signed two-year contract extensions with Derbyshire, committing them both to the club until the end of the 2016 season.
Footitt, who arrived at the 3aaa County Ground in 2010, has enjoyed his most successful season to date in 2014, taking 54 first-class wickets at an average a shade over 20.
The left-arm paceman has also snared 19 scalps in the limited-overs competitions this term, including career-best List-A figures of 5-59 versus Leicestershire Foxes at Grace Road in July.
Fellow seamer Palladino has also been a key part of the Derbyshire attack this year, claiming 33 first-class victims and adding valuable lower-order runs.
Elite performance director Graeme Welch said: “We’re delighted that both Mark and Tony have committed themselves to Derbyshire for the foreseeable future.
“The pair are both senior bowlers and will be integral parts of our bowling unit as we continue to build a winning squad for 2015 and beyond.
“Mark is enjoying his best season to date and has already reached 50 first-class wickets for the first time.
“When he’s on-song, Mark adds something different to the bowling unit because he’s left-arm and consistently up around 90 miles-per-hour, and I’m sure there’s still plenty more to come from him.
“Tony is a consistent performer in all forms for Derbyshire and has proven that he can take wickets in all formats. He also offers a useful batting option down the order and we hope this can continue for years to come.”