When Aryna Sabalenka plays Nick Kyrgios in Sunday’s ‘Battle of the Sexes’ show match, she'll have her rich boyfriend cheering her on. Since last year, Georgios Frangulis, a Brazilian businessman, has been there for her. He goes all over the world to watch her play and has even been seen helping her practice.

They started dating around April 2024, not long after the sad passing of Sabalenka’s ex, Konstantin Koltsov. He was an ice hockey player who died in March of that year. Sabalenka told PEOPLE that Frangulis' support meant a lot to her during that tough time. “It was a hard time, and I was so glad he was there for me, cheering me up and making sure we had some fun,” she said.

They met when Sabalenka became a spokesperson for Oakberry, an acai bowl company started by Frangulis. His company has done really well, and he’s made even more money than Sabalenka has from tennis.

He’s reportedly worth about £55m ($75m), while Sabalenka has earned about £33m ($45m) in prize money. That puts her in second place for all-time earnings in women’s tennis, behind Serena Williams.

They don’t mind the age difference either. Frangulis is nine years older than Sabalenka.

He'll probably be there in Dubai on Sunday when Sabalenka plays Kyrgios in what they are calling a modern version of the Billie Jean King vs. Bobby Riggs match.

Kyrgios, who used to be a Wimbledon finalist, is now ranked No. 1286 because of injuries. But he’s excited to play against Sabalenka, who has been the best player on the women's tour for the last couple of years. The match will be best of three sets, with a tie-break if needed. But they’re playing on a court that’s been changed a bit.

Evolve says that women move around the court more slowly than men, so Sabalenka’s side of the court will be smaller. Each player will also only get one serve per point to try and even things out, since Kyrgios has a really good serve.

Novak Djokovic will shoot for his 25th Grand Slam title at the 2026 Australian Open, and his outfit for the first Grand Slam of the season is out.

Whenever Djokovic shows up in Melbourne, everyone watches him. He's the best player ever at the Australian Open, with 10 wins in 20 tries.

That means he has a 50% chance of winning every time he plays there! It's an insane record. Maybe only Rafael Nadal's French Open record is better.

Djokovic has won 99 matches at the Australian Open in his career, and he'll most likely get his 100th in 2026. For this, he's going back to a color that brought him wins at Melbourne Park.

The Serbian legend usually wears colors for certain stretches of the tour. For example, he almost always wears red in China to honor Chinese culture, where red is an important color.

He's worn blue at the Australian Open recently, but that will change for 2026. He's going back to green, which he wore when he won in 2020 and 2021.

Lacoste, his sponsor, has already revealed his outfit for the tournament, which runs from January 18th to February 1st, 2026. It's a green t-shirt and dark blue shorts.

Even though Djokovic is so good at Grand Slams, many experts, coaches, and ex-players are starting to wonder if he can win another major. Carlos Alcaraz and Jannik Sinner have won the last eight majors. Djokovic's last win was at the 2023 US Open.

Andy Roddick, a former world No. 1, talked about Djokovic on his podcast, Served with Andy Roddick. He questioned whether the 38-year-old's body can hold up, saying maybe his age is becoming a problem.

The question is… And he was wondering this after the US Open. I don’t know that he can train the way he used to. I think you can’t train that hard at 38 years old. And if you can’t, can your body last for two weeks at a major, playing best-of-five sets?

The answer this year was no, according to him. He wondered if his body could do it and knew that when he got to the semis, he was going to ask if his body could allow him to beat these guys, if his body was damaged by the time he got there. That’s what this whole discussion is about.