World number one Aryna Sabalenka apologised on Tuesday for comments she made after losing the French Open final to Coco Gauff earlier in June.
Sabalenka succumbed to Gauff in three sets at Roland-Garros, with the American overcoming a set down to win her maiden French Open title.
After the loss, the 27-year-old told reporters that it was “the worst final I’ve ever played”.
“I don’t think she won the match because she played incredibly well, but because I made all those mistakes.”
However, in an interview with Eurosport broadcast on Tuesday ahead of this week’s WTA tournament in Berlin, the Belarusian said the comments were “simply completely unprofessional of me.”
“I let my emotions guide me. I absolutely regret what I said back then,” she added.
She is the number one seed in the German capital and could face second seed Gauff again in the final.