The 23-year-old was one of two men struck by a blue Mercedes A Class car in Headford Street, close to Sheffield city centre, in the early hours of Thursday, July 18. CRIME: Man threatened with knife during street robbery in SheffieldA 20-year-old man was arrested on suspicion of causing serious injury by dangerous driving man and was released under investigation after questioning. COURT: Barnsley man jailed for dealing drug 50 times stronger than morphineAPPEAL: Man threatened with knife during street robbery in SheffieldAnyone with information should call 101.