Derbyshire all-rounder Alex Hughes signs a new three-year contract with the club.
County champions Essex begin the defence of their title in 2018 against Yorkshire at Headingley on 13 April.
Shiv Thakor, an ex-England Under-19 player, exposed himself through a "gap" in his jogging bottoms.
Derbyshire sack all-rounder Shiv Thakor after he was found guilty of two sexual exposure charges.
Audio & Video
Hampshire's Shahid Afridi hits the fastest T20 Blast hundred of 2017 from 42 balls during his side's crushing 101-run quarter-final win over Derbyshire.
Analysis and opinion from the BBC's cricket correspondent.
How to follow the Ashes on the BBC
BBC Sport brings you live radio commentary from England's Ashes series in Australia.
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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.