Darren Cahill - tennis extraordinaire - born Adelaide:
In 1989, Cahill's reached his career peak doubles ranking of world no. 10 and his peak singles ranking of no. 22 in 1989.
Cahill's best singles performance at a Grand Slam event came at the 1988 US Open, where he knocked out Lawson Duncan, Boris Becker, Marcelo Ingaramo (walkover), Martin Laurendeau and Aaron Krickstein on the way to reaching the semifinals, where he lost to eventual champion Mats Wilander.
After retiring from the tour, Cahill has been a successful tennis coach and guided Lleyton Hewitt to become the youngest player ever ranked world no. 1. After Hewitt, Cahill coached Andre Agassi, who under Cahill became the oldest player ever to be ranked world no. 1 in May 2003. Cahill joined the Adidas Player Development Program after Agassi retired in 2006 and has worked with high-profile players, including Andy Murray, Ana Ivanovic, Fernando Verdasco, Daniela Hantuchová, Sorana Cîrstea and Simona Halep. Halep recently became the third player to reach a world number 1 ranking under his coaching.
In addition to coaching individual players, Cahill was the Australian Davis Cup coach from 2007 until February 2009.
Darren is the son of Australian rules football player and coach John Cahill. His nickname is Killer.
 Tim Cahill – soccer star – born Sydney:
Timothy Filiga "Tim" Cahill is an Australian professional footballer who plays for A-League club Melbourne City and the Australian national team. Prior to joining Melbourne City, he played for Millwall, Everton, the New York Red Bulls, Shanghai Shenhua, and Hangzhou Greentown.
Cahill has become one of the highest profile footballers in the Asian Football Confederation, earning over 100 caps and scoring 50 goals for his country. He was the first Australian to score at a FIFA World Cup. Cahill has scored in three World Cups (2006, 2010, 2014) and has scored the most goals by any Australian in the World Cup with five goals. In 2007, he became the first Australian player to score at an AFC Asian Cup.
 Courtesy: Wikipedia & Twitter













