York University

Herbert Duff was named to Louis Desmarteaux’s staff as Lions assistant tennis coach in September 2021. Duff has a diploma in fitness and health promotions from Humber College, and is currently working toward his bachelor’s degree of kinesiology.
 
Outside of York, he has been a tennis instructor at TAC Sports in Toronto since 2021, where he plays an integral role in developing training plans and skill sessions for athletes at the North York-based athletic club.