'Out of power' Swiatek stunned by Kalinskaya in Dubai

DUBAI, United Arab Emirates -- Iga Swiatek blamed fatigue for her semi-final defeat to Anna Kalinskaya in the Dubai semi-finals on Friday, admitting: "I didn't have power anymore" to up her level during the match.

Kalinskaya snapped Swiatek's seven-match winning streak and ended the world number one's bid for a rare Doha-Dubai title double with a commanding 6-4, 6-4 victory.

"I didn't have power anymore to give even more, which doesn't happen often," admitted 22-year-old Swiatek.

"I just felt out of control a little bit because of that. Usually when I tell myself what to do, I can improve my game. Today I was so out of power and tired that I just couldn't."

The 40th-ranked Kalinskaya was contesting her first WTA 1000 semi-final, and is into the first tour-level final of her career, where she faces Italian Jasmine Paolini.

Kalinskaya defeated Paolini last month at the Australian Open to reach her first Grand Slam quarter-final. They will square off once again on Saturday in another career-defining showdown.

Top seed Swiatek came into the semi-finals having won 25 of her last 26 matches and looking to follow up her title run in Doha last week with a first-time triumph in Dubai.

Kalinskaya had to battle through the qualifying rounds and has won seven matches in total this week in the emirate, including three top-10 victories over Jelena Ostapenko, Coco Gauff and now Swiatek.

"She's a great player. I knew if I didn't stay calm and I didn't stay aggressive she is going to destroy me. So that was my plan, to stay aggressive, to move her a lot," said the 25-year-old Kalinskaya.

From 2-4 down, Kalinskaya won four games in a row to snatch in 53 minutes.

The Russian saved six of seven break points during that set, drawing 11 unforced errors off Swiatek's racquet.

Swiatek took a toilet break between sets but it didn't change the momentum as Kalinskaya clinched a fifth consecutive game on a loose forehand from her opponent.

- Racquet smash -
Swiatek threw her racquet in frustration as she lost a sixth game in a row, falling behind 0-2 early in the second set.

Kalinskaya claimed a second break of serve in game seven and served for the match at 5-2 but Swiatek wasn't ready to