Danish delight: Holger Rune meets Caroline Wozniacki at Roland Garros

WATCH: Holger Rune is through to the fourth round in Paris for the second straight year, and beat American Chris Eubanks in the first round.

How do you say "two superstars" in Danish? Inquiring minds want to know after Denmark's finest, Holger Rune and Caroline Wozniacki, were spotted sharing a friendly moment on the grounds of Roland Garros on Sunday: The aspiring world No. 1 paused his warm up for an afternoon practice to greet the former world No. 1, and the two shared a hug and a friendly chat.

While sixth-seeded Rune is through to week two for the second year running after his breakthrough run to the quarterfinals a year ago, Wozniacki is pulling double duty in Paris. She's competing in the legends' event, as well as doing commentary for Tennis Channel.

Rune, who will partner with childhood friend Clara Tauson to represent Denmark at the return of the Hopman Cup in July, is on the record having lauded Wozniacki's achievements in her career, and her influence on tennis' previously small footprint back home in Denmark.

Such praise came as recently as Saturday after he beat Genaro Alberto Olivieri in straight sets in the third round in Paris. Joining French television for a post-match interview, Rune corrected an interviewer who claimed he was the first Danish player to reach a Grand Slam quarterfinal in the Open Era.

(He did the same last fall after winning the Rolex Paris Masters, when a reporter framed a question about Rune being the first Dane to crack the Top 10.)

If he beats No. 23 seed Fransisco Cerundolo on Monday, Rune will match another one of Wozniacki's career achievements: She was a two-time quarterfinalist in Paris, in 2010 and 2017.