Tommy Sheridan, a former stallion man at Dalham Hall Stud, has died at the age of 77, the Racing Post reported on Thursday. The dual Group 1 winner Machiavellian was among the stallions Sheridan cared for in his time at Darley's Dalham Hall, having previously had spells working for trainer Noel Murless and at the National Stud. Sheridan remained at Dalham Hall until 2007 when he transferred to Limes Farm in Woodditton, the base for Sheikh Mohammed's endurance horses. "We're all deeply saddened here at Dalham Hall, and indeed at...