The man, the myth, the commentating legend. Darren Cahill is a master of all trades, but is maybe most known for being the coach of Simona Halep and guiding the Romanian to her first Grand Slam title. The two split at the end of 2019, but announced they'll be back on the road together starting in 2020.
Not many may know, but the Australian was a pretty good doubles player. He never won a Grand Slam, but Cahill was always skirting with greatness during his decade-long career. With the Australian returning to Halep's corner next year, now is the perfect time to learn everything about the player-coach duo.