Top man: Simon Harmer takes the congratulations on the way to his nine-wicket haul for Essex against DerbyshirePICTURES: Getty ImagesSIMON Harmer returned to form in blistering style yesterday, taking a career-best 9-80 in 25.5 overs as Essex put the squeeze on Derbyshire at Chelsmford.The South African off-spinner was only denied the full ten wickets by England all-rounder Dan Lawrence who followed his knock of 152 not out by getting Billy Godelman caught off his bowling.● Secret of Harmer’s success – see page 16

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