Whoever you are, and whether you know a lot about tennis or a little, you probably know that there are very big tennis tournaments that happen all around the world. And if you went to look up those tournaments, there would be some names that you would see over and over again. But who really are they?
#1 – Carlos Alcaraz
Spain’s Carlos Alcaraz, currently ranked first in the world, has been dominating the sport since his first title in 2021. As well as his 24 titles, he’s also the youngest tour champion, youngest Spanish champion in 17 years, youngest winner of an ATP title, AND first teenager to be ranked first in the world. Alcaraz has a very aggressive playing style, making him seem scary, but this has also led to him being compared to another tennis star, Rafael Nadal. These two came together in the 2024 Olympics and made it to the quarterfinals for doubles. He is so close to being a Grand Slam champion (winning all major tennis competitions), as he is only missing an Australian Open title, so watch this year’s Australian Open to see if he can achieve this goal.
#2 – Jannik Sinner
Italy’s Jake Sinner, born on Aug. 18, 2001, (24 years old) has been ranked #2 internationally in tennis since April 1st, 2024. He has won 4 grand slams, with the most recent one being 2025 Wimbledon, but originally he wasn’t even supposed to be a tennis player! Up until the age of 12, his main focus was on skiing as he was both a national champion and runner-up. But once he turned 13, he decided to turn his attention more towards tennis. He moved to train with his very own veteran coach, started competing in tournaments at 16, and by the time he was 17, he had multiple ATP Challenger Tour titles. Watch this year’s Australian Open to see his epic rivalry with Alcaraz, and to see if he can three-peat the title.
#3 – Alexander Zverev
Germany’s Alexander “Sascha” Zverev, born on April 20, 1997, (28 years old) rose to fame in his younger years when he won the boy’s singles title in the 2014 Australian Open at only 17 years old. He has 24 ATP Tour singles titles, including 2 trophies, and a gold medal from the 2020 Tokyo Olympics. However in 2022, he tore multiple ligaments in his ankle during the French Open semi-final and had to take around six months to recover, which set him back a lot from his competitors. Zverev has also had Type 1 diabetes since he was 4, and has a foundation that works to help provide young children with diabetes the insulin that they need.
#1 – Aryna Sabalenka
Belarus’s Aryna Sabalenka currently has 6 Grand Slam titles, and is ranked #1 in the world. She originally wasn’t even supposed to play tennis. She started when she was 6 because her dad drove by some tennis courts, and decided to let Aryna give it a try. She made her debut when winning her first Grand Slam title and becoming #1 in the world for her first time. There was some controversy with Sabalenka following the 2025 French Open when she said the only reason she lost was “because she played terrible”, but apologized shortly after due to unprofessionalism.
2 – Iga Świątek
Poland’s Iga Swiatek, born on May 31, 2001 (24 years old) has 6 Grand Slam singles titles and was the very first Polish player to win a Grand Slam. She grew up in a very sports-oriented family as her dad was a part of Poland’s 1988 Olympic rowing team, and she started playing tennis because her older sister was playing and she wanted to beat her! Her big debut was in the 2020 French Open when started ranked 54th, beat the top seed, and became the “lowest-ranked French Open champion since computer rankings were introduced in 1975,” says the Olympics’ official website. Look for her in this year’s Australian Open, as her season of triumph might be the thing to set her apart as a champion.
#3 – Coco Gauff
America’s Coco Gauff has always been a star. With both of her parents being college athletes, there was a lot of pressure to be athletic. But it didn’t seem to be a problem for Coco. At 10, she went to France to train with Serena WIlliams’ coach, and at 15, she defeated Venus Williams in the first round of 2019 Wimbledon. She then went on to become the youngest player to reach the fourth round of a grass-court competition since 1991 and the youngest American women’s singles champion since 1999.
