Britain’s Katie Boulter is into the semi-finals of the Japan Open tennis.

She came from a set down to beat Antonia Ruzic ((pron: Roo-zhich)) 3-6, 6-3, 6-3.

It will be Boulter’s first semi-final since Queen’s Club in June and she’ll face doubles specialist Czech player Katerina Siniakova.

The victory means she’ll become the British number one again.