Former England international Mal Loye joins Derbyshire as their new development coach.
Derbyshire sign South Africa fast bowler Hardus Viljoen as a non-overseas Kolpak player on a three-year contract.
The 2017 county fixtures are announced, featuring a full round of day-night Championship matches for the first time.
Derbyshire sign Sri Lanka all-rounder Jeevan Mendis as their overseas player for the first half of next summer.
Audio & Video
Derbyshire teenager Matthew Critchley tells BBC Radio Derby remained relatively calm as he closed in on a maiden first-class century.
Analysis and opinion from the BBC's cricket correspondent.
Follow live cricket on the BBC
BBC Test Match Special returns with live commentary on every ball of England's tour of India this winter.
Cricket alerts, newsletters and social media
Get latest scores and headlines sent straight to your phone, sign-up to our newsletter and learn where to find us on online.
How to get into Cricket
How to get into cricket - physical exertion with a chess-like element in matches which range from half an hour to five days.