All-rounder Mattie McKiernan has signed a one-year contract extension that will keep him at Derbyshire until the end of the 2020 season.
The 24-year-old performed well for the second team last season, claiming 16 Twenty20 wickets at an average of 12.31 and with best figures of 3-15.
He also scored 143 runs in his only Second XI Championship appearance thanks to back-to-back half-centuries and a top score of 85.
A powerful hitter and tricky leg-spin bowler, McKiernan has impressed the Derbyshire coaching staff over the winter and now commits his next two seasons to the club.
Head of cricket David Houghton said: “Mattie has been very committed and worked hard, even though he was initially only on a short-term contract.
“His efforts and ability made it easy for us to offer him a full contract, and I think he has a role to play in the squad.
“He can play as a specialist batsman, but he bowls leg-spin as well and he’s one of the top fielders in the side, so he offers skills in all three departments.”
McKiernan said: “I am thoroughly enjoying my time here, and I’m looking forward to continuing my development and pushing for a place in the first team.
“Under the new coaching set-up, there’s a real belief I can make an impact.”