Since retiring from the tour, Cahill has been a successful tennis coach, working with high-profile players such as Lleyton Hewitt, Andre Agassi, Fernando Verdasco, and Daniela Hantuchová.
Cahill has been a successful tennis coach. A successful tennis coach is working with high-profile players such as Lleyton Hewitt. A successful tennis coach is working with high-profile players such as Andre Agassi. A successful tennis coach is working with high-profile players such as Fernando Verdasco. A successful tennis coach is working with high-profile players such as Daniela Hantuchová. Cahill was retiring from the tour.