Watch action from Day Two of the Specsavers County Championship fixture versus Northamptonshire at The 3aaa County Ground, as the visitors claimed a narrow lead.
Derbyshire were dismissed for 281 during the morning session, with Tom Milnes hitting 24 and Alex Hughes 21 to add some lower-order runs.
Will Davis was then the pick of the bowlers for the hosts, claiming 4-55, while Shiv Thakor took 2-54 and Jeevan Mendis claimed 2-60, but Northants ended the day with a 10-run lead on 291-9.
Max Holden top scored for the visitors with 68 not out, while Ben Duckett (53) and Rob Newton (50) both hit half-centuries.
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