Alastair Cook has signed a one-year contract extension with Essex, keeping him at the club until the end of the 2018 season.
Batsman Jaik Mickleburgh is to leave Essex when his contract expires at the end of this month.
Hampshire are relegated alongside Notts from the top-flight of the Specsavers County Championship after losing to Durham.
Glamorgan lost their last six wickets for just 10 runs as Leicestershire romped to an unlikely 26-run victory.
A recap of all the action as Middlesex won the Specsavers County Championship title after beating Yorkshire by 61 runs at Lord's.
The Professional Cricketers' Association have announced a four-man shortlist for the prestigious NatWest Player of the Year award.
Joe Clarke and Joe Leach steered Worcestershire into a dominant position against Gloucestershire at New Road.
Timm van der Gugten returned 5-25 as Leicestershire were shot out for just 96 on day one against Glamorgan.
Matt Quinn has agreed a one-year contract extension at Essex until the end of the 2018 season
Essex's players set off to celebrate their Division Two title success despite suffering only their third defeat of the summer.
Essex bowler David Masters has announced he will retire at the end of the current season.
Miguel Cummins bowled Worcestershire to a dramatic 11-run win over Sussex in Specsavers County Championship Division Two.
So, you've had a go at part one of our Royal London One-Day Cup Quiz - will you fare any better in part two?
Essex have won promotion from Division Two of the County Championship by securing a second batting bonus point against Glamorgan.
Put your cricket knowledge to the test in part one of Sky Sports statto Benedict Bermange's Royal London One-Day Cup Quiz!
Essex's promotion push from Division Two was halted somewhat despite reducing Glamorgan to 256-7 on day one.
Essex have re-signed wicket-keeper batsman Adam Wheater from Hampshire on a two-year deal.
Varun Chopra has returned to Essex ahead of schedule - on loan from Warwickshire for the final two matches of the season.
Jamie Porter and Dan Lawrence have signed contract extensions at Essex to keep them with the county for an extra year.
Kent crushed Sussex by an innings and 127 runs to keep up the pressure on promotion favourites Essex.