Hardus Viljoen took three wickets as promotion-chasing Sussex were reduced to 96 for 4 in reply to Derbyshire’s 338 on the second day of their Specsavers Championship match at Hove.
The South African quick bowler looked back to his best following an injury-ravaged first season with the Peakites and had figures of 3 for 32 from nine overs at lunch after he removed Stiaan van Zyl (17) and Chris Nash (20) via inside edges before bowling Luke Wells, who had made a fluent 46, in the last over before the interval.
Wells had earlier shared a stand of 59 for the second wicket with van Zyl but Ben Brown and Luke Wright were tasked with a rebuilding job after Viljoen removed Nash and Wells in successive overs just before lunch.
Harry Podmore had earlier broken through with his fifth ball when Angus Fraser poked outside off stump and was caught at second slip for one.
Derbyshire’s first innings had been ended with the first ball of the day when Jofra Archer uprooted Harvey Hosein’s off stump for 38. Hosein had helped Derbyshire’s last two wickets add 51.