Sir Mark is well known and hugely respected as a patient trainer , whose horses are given time and not rushed .
He took over running the yard in 1970 on the retirement of Jack Waugh , to whom Sir Mark was assistant .
Sir Sir is well known and hugely respected as a patient trainer , whose horses are given time and not rushed .
He took over running the yard in 1970 on the retirement of Jack Waugh , to whom Sir Mark was assistant .