Derbyshire 235-5 lead Sussex by 312 runs
Derbyshire had extended their lead beyond 300 against Sussex as they pressed for only their second win of the season in the Specsavers County Championship.
At tea, Derbyshire were 235 for 5, a lead of 312, with Harvey Hosein (43) and Harry Podmore (22) having added an unbeaten 48 for the sixth wicket.
Sussex’s all-seam attack kept plugging away but it was hard work on a flat pitch, although youngsters George Garton and Stuart Whittingham picked up a wicket each in the afternoon session.
Left-armer Garton yorked Alex Hughes for 14 in the second over after lunch but Hosein and Matt Critchley put on 60 in 15 overs with Critchley (51) reaching a 64-ball half-century, which included five fours, before he was caught at deep mid-wicket off a mis-timed pull when Whittingham dropped short.