Worcestershire have been relegated from Division One after falling to an innings and 129 run loss to Essex at Chelmsford.
Joe Clarke hit an unbeaten 74 as Worcestershire looked to cling on to their slim Specsavers County Championship Division One survival hopes at Essex.
Hampshire just shaded a bowler-friendly opening day against Yorkshire as 15 wickets fell on day one of their clash at Headingley.
Rory Burns and Morne Morkel helped Surrey seal the County Championship title while Ben Coad was on song for Yorkshire.
Former England wicketkeeper James Foster will leave Essex at the end of the season and move into coaching.
Yorkshire secured a 95-run County Championship win over Roses rivals Lancashire to take a huge step towards avoiding relegation.
Morne Morkel edged Surrey closer to a win over Worcestershire and their first County Championship title in 16 years.
Alastair Cook will not play for Essex for the remainder of their Specavers County Championship season.
Lancashire enjoyed an excellent opening day of their Division One relegation battle with Yorkshire at Headingley.
Alastair Cook completed his 33rd century in his final Test innings for England before being dismissed for 147 against India.
Essex have announced all-rounders Ashar Zaidi and Callum Taylor are set to depart the club.
Surrey's seamers blew away County Championship title-holders Essex as they extended their lead at the top of Division One.
Keshav Maharaj took 7-37 as his side snatched a dramatic tie in their astonishing County Championship clash with Somerset.
Surrey skipper Rory Burns scored 90 at Essex as he became the first batsman to 1,000 County Championship runs this season.
Alastair Cook has "got a lot of cricket in him", says Ryan ten Doeschate, as he prepares to continue his career at Essex.
Alastair Cook will retire from international cricket after England's fifth Test against India at the Oval.
Yorkshire and Hampshire remain in big danger of relegation after comprehensive defeats to Somerset and Essex respectively.
Surrey moved closer to their first Championship title since 2002 after crushing Nottinghamshire by an innings at The Oval.
Surrey are closing in on another Specsavers County Championship victory after making Nottinghamshire follow on at the Oval.
Mark Stoneman ended day one on 99no as leaders Surrey closed on 256-6 against third-placed Nottinghamshire at The Oval.
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