Complex sentence: Hansen-Dent is the son of Bettyann Grubb, former UCLA Bruin and Top 10 WTA player in the 70's, and step-son of Australian Davis Cup player Phil Dent, and half-brother of former ATP tennis professional Taylor Dent.
Split into simpler sentences: Hansen-Dent is the son of Bettyann Grubb, former UCLA Bruin and Top 10 WTA player in the 70's. Brett is the step-son of Australian Davis Cup player Phil Dent, and half-brother of former ATP tennis professional Taylor Dent.