Joe Leach reached a personal best tally for a season of 60 County Championship wickets as Worcestershire made early inroads into the Derbyshire batting order on day three at New Road.
The Worcestershire vice-captain surpassed last summer's tally of 59 victims with a two wicket burst in his opening spell after Derbyshire resumed on 15-0 in reply to 475-7 declared.
Leach had Billy Godleman (11) caught behind – an excellent take by Ben Cox diving away to his left – and trapped Tom Wood (0) lbw in the same over.
Miguel Cummins worked up a good head of pace and had Wayne Madsen lbw (5) before Charlie Morris made a double breakthrough.
Ben Slater (25) was anchored in the crease and edged through to Tom Kohler-Cadmore at first slip.
Morris switched to the New Road End and the same combination accounted for Alex Hughes (4) as Derbyshire reached 73-5 by lunch.
