|Specsavers County Championship Division Two, Chelmsford|
|Essex v Derbyshire, day one|
|Essex 284-3: Browne 154*, Lawrence 51*; Palladino 2-61|
|Derbyshire: Yet to bat|
|Essex 2 pts, Derbyshire 1 pts|
Opener Nick Browne made a career-best unbeaten 154 as Essex closed on 284-3 on day one at Chelmsford.
Seamer Tony Palladino (2-61) reduced Essex to 70-2 in the morning session, taking the wickets of Jaik Mickleburgh and Tom Westley - both leg before.
Ravi Bopara (49) and Browne shared a third-wicket partnership of 111 before Shiv Thakor removed Bopara, also lbw.
But Browne then added a further 101 in an unbroken fourth-wicket stand with Dan Lawrence, who is unbeaten on 51.