He includes his years as an assistant coach .
He has worked with some of tennis ' most recognized players , including national champions Arthur Ashe , Ian Crookenden , Billy Martin and Jimmy Connors , and 1992 Olympian Mark Knowles .
Including his years as an assistant coach , he has worked with some of tennis ' most recognized players , including national champions Arthur Ashe , Ian Crookenden , Billy Martin and Jimmy Connors , and 1992 Olympian Mark Knowles .