Champion's mindset propels Halep into Melbourne semi-finals

Simona Halep warned she's playing some of the best tennis of her career as she steamed into an Australian Open semi-final against fellow two-time Grand Slam champion Garbine Muguruza on Wednesday. The 28-year-old Romanian is the only player in the women's draw not to drop a set in Melbourne and never looked in danger of doing so as she thrashed Estonian 28th seed Anett