Iga Swiatek speaks at Rafael Nadal Academy graduation

WATCH: Iga Swiatek meets the media after winning her fourth Grand Slam title at Roland Garros.

Graduation day is an unforgettable moment in any student's life, but the student-athletes at Rafael Nadal's namesake tennis academy got a Grand Slam-worthy surprise at their commencement ceremony on Wednesday: an appearance by world No. 1 Iga Swiatek.

The four-time major-winner gave a keynote address to the Class of 2023 at the Rafael Nadal Academy in Mallorca, offering her pearls of wisdom and inspiration to the next generation of tennis players. Swiatek's remarks to the assembled crowd, she said, were inspired by her run to her fourth Grand Slam title at Roland Garros over the last two weeks.

"For the last few weeks, I've been looking at one quote at Roland Garros in Paris," Swiatek said. "On Philippe-Chatrier ... it's written 'The victory belongs to the most tenacious.'

"I often have the feeling that sometimes when I'm playing or when I'm doing things off court, that I should do them better or I should seek perfection. But this shouldn't be the sense. We should all focus on the process and giving 100%, no matter what you can give, because every day is different.

"So I hope no matter what you do in the future years, if you're going to give 100%, if you're going to dedicate your focus and time to do it the best way possible, no matter what the result is going to be I'm sure that you'll have no regrets at the end."

But Swiatek also encouraged the new graduates to stay true to themselves, and be honest about their emotions, feelings, and mental health as they pursue their goals.

"When I was younger it was really hard to open up, to talk about what I want to do, what I want to achieve, how I feel," Swiatek said. "When I started doing that I felt I could truly work on myself and I became a much better person.

"So whatever you do in the future, don't hesitate to seek help. Don't hesitate to talk about difficult stuff."

Nadal also delivered remarks to graduates, and thanked Swiatek for coming. In turn, she spoke about how the 22-time major-winner has inspired her.

"Honestly, for us it's a huge privilege to have you here today," Nadal said. "I know that everybody here at the Academy, the students especially, appreciate your efforts, that after winning Roland Garros you are here inspiring all the kids."

To close out the ceremony, Swiatek even got her own bucket-list experience at the commencement: Having graduated high school virtually three years ago during the height of the COVID-19 pandemic, the Pole was given a robe and mortarboard, and was able to symbolically move her tassel and toss her cap in the air with the new graduates.