Defending champion Alex de Minaur beat Stefanos Tsitsipas for the first time to reach the semi-finals of the ATP hardcourt tournament in Acapulco, Mexico on Thursday.Kecmanovic 6-2, 6-2 to seal his place in the last four.

The other semi-final will pit second-seeded Holger Rune of Denmark against sixth-seeded Casper Ruud of Norway.

Rune defeated Germany’s Dominik Koepfer 7-6 (7/2), 7-6 (7/0) to reach the semi-finals for the second year in a row.

Ruud rallied from a set down to beat American Ben Shelton 6-7 (7/9), 6-4, 6-4.