Telly has been a USPTA pro for over 37 years, and has been a member of the Wilson Advisory Staff since 2016. He has been at Kings Highway Tennis Club since 2014, where he has led recruiting and training of summer staff at the club in addition to Tennis Connecticut's outdoor locations, summer camp curriculum, and overseeing racquet stringing duties. Previously, Telly was the Director of Tennis for junior and adult programs at Paegtegat Racquet Club in New York. He has also worked at the National Tennis Center with both the Peugeot and Urban Youth Tennis Academies for promising junior players. Telly has coached fundraising events and clinics for the late Vitas Gerulaitis' tennis foundation which included tennis greats like Bjorn Borg, John McEnroe, Arthur Ashe, Martina Navratilova, Billie Jean King and Ilie Nastase. For many years, he worked as Assistant Tennis Director in New York City where he conducted and supervised clinics in dozens of parks spanning all five boroughs of the city. Telly played college tennis at the University of North Carolina, and is a native of Greece where he was a nationally-ranked junior player.