Karolina Muchova needed all of her experience to hold off rising Canadian teenager Victoria Mboko 7-5 7-6(5) on Tuesday, booking a place in her first Miami Open semi-final after a match she admitted could have gone either way, Reuters reported. 

The 29-year-old Czech secured her fifth WTA 1000 semi-final berth in a hard-fought contest that lasted one hour and 47 minutes.

"It was very close, basically one point at the end. It can always change in tennis. I'm just very grateful I was able to win the last point," Muchova said, according to Reuters.