World number three beat n Ashleigh Barty 7-5 7-5 to reach the Madrid Open semi-finals.

Halep broke serve at 5-5 in each set before holding serve to love to seal a narrow victory against the ninth seed.

The n is hoping to win the Madrid title for a third time after victories in 2016 and 2017.

The 27-year-old will play world number one or Ss player in the semi-final.