Call it the sequel to the "Wattniacki" NCAA Championship Game coming out party.

Lightlybuzzed.com, a Fansided-affiliated site, posted a tweet showing Houston Texans defensive end J.J. Watt and Danish tennis star Caroline Wozniacki together in Paris as Wozniacki was preparing to play in the French Open, tennis' second Grand Slam of the season.

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In April, Wozniacki was with Watt at the NCAA title game between Watt's alma mater, the Wisconsin Badgers, and the Duke Blue Devils. Duke won the game and the national title.

So far, so good for Wozniacki in her quest for her first Grand Slam title. She defeated Karin Knapp in the first round at Roland Garros, which is already an improvement of her 2014 French Open result. An injured (hamstring) and heartbroken (Rory McIlroy had announced a few weeks earlier that their engagement was off and the two had split) Wozniacki lost to Yanina Wickmeyer in the first round last year.

Caroline Wozniacki, J.J. Watt dating? Couple together at NCAA Championship Game

"Wow, way less people in the room than last year," Wozniacki said laughing, when she entered the post-match news conference.

Lightlybuzzed.com posted a comment from a Danish website, seoghoer.dk, on spotting Wozniacki and Watt in Paris (as translated into English).

"Rumours have been for some time that the Danish Caroline Wozniacki and the American football player JJ Watt.

"Now there emerged a picture up on twitter, which should show that they enjoy themselves together in Paris.

"Tennis player is in Paris, when she will play the French Open, so it does not seem nonsensical if she should have spent some quality time with JJ Watt - either as friends - or maybe more."

TerezOwens.com and the National Sun Times reported that the couple's appearance together in France is a sign that the two are taking their relationship to the next level.

How serious do you think the relationship between J.J. Watt and Caroline Wozniacki is? Comment below or tell us @SportsWN.