.jpg){kind=link}
01Tennis
Roger Federer
Twenty-time Grand Slam singles champion whose all-court career helped define modern tennis.
About iintrooPeople in sport · 25 profiles
Athletes
Youth, amateur, elite, masters, para and retired competitors. This opening index brings together people from different sports, countries, generations and levels of the system.
Starting directory
25 people to know.
Each name opens an individual iintroo route with role, sport, country, contribution and a reference trail.
.jpg){kind=link}
02Tennis
Billie Jean King
Grand Slam champion, WTA founder and a central figure in the movement for equality in sport.
.jpg){kind=link}
03Tennis
Serena Williams
Twenty-three-time Grand Slam singles champion and one of the defining competitors of her era.
04Association football
Lionel Messi
World Cup-winning footballer recognised for elite playmaking, scoring and sustained club success.
.jpg){kind=link}
05Association football
Cristiano Ronaldo
International football record-setter whose career spans leading clubs and Portugal's national team.
06Artistic gymnastics
Simone Biles
Multiple Olympic and world champion who has expanded the technical boundaries of gymnastics.
07Athletics
Usain Bolt
Olympic sprint champion and world-record holder in the 100 metres and 200 metres.
08Swimming
Michael Phelps
The most decorated Olympian, known for unprecedented success across several swimming events.
_(cropped2).jpg){kind=link}
09Basketball
LeBron James
NBA champion and Olympic gold medallist noted for longevity, versatility and leadership.
10Association football
Marta Vieira da Silva
Brazilian football icon and six-time FIFA world player of the year.
.jpg){kind=link}
11Tennis
Novak Djokovic
Record-setting Grand Slam champion known for return quality, movement and competitive longevity.
.jpg){kind=link}
12Tennis
Rafael Nadal
Grand Slam champion whose clay-court record and resilience shaped a historic tennis career.
13Tennis
Iga Świątek
Grand Slam champion and former world number one known for heavy topspin and all-court development.
.jpg){kind=link}
14Athletics
Eliud Kipchoge
Olympic marathon champion and a leading figure in the modern history of distance running.
15Athletics
Shelly-Ann Fraser-Pryce
Multiple Olympic and world sprint champion with exceptional longevity at 100 metres.
16Swimming
Katie Ledecky
Olympic and world champion who transformed standards in women's distance freestyle.
17Athletics
Armand Duplantis
Olympic pole vault champion and serial world-record breaker.
.jpg){kind=link}
18Road cycling
Tadej Pogačar
Grand Tour and Monument winner recognised for rare versatility across cycling terrain.
19Artistic gymnastics
Rebeca Andrade
Olympic and world champion who became one of Brazil's most accomplished gymnasts.
20Judo
Clarisse Agbégnénou
Olympic and world champion whose career has defined the under-63 kg judo category.
21Field hockey
Yibbi Jansen
Dutch international recognised for penalty-corner scoring and major tournament success.
22Field hockey
Ali Akın Özkılıç
Turkish national-team player, league top scorer and coach whose career connects competition with athlete development.
.jpg?width=1200)
.jpg){kind=link}
23Para athletics
Tanni Grey-Thompson
Eleven-time Paralympic champion whose public work connects disability, access and sport.
24Wheelchair tennis
Esther Vergeer
Paralympic champion who produced one of the longest unbeaten runs in elite sport.
_(cropped).jpg){kind=link}
25Baseball
Shohei Ohtani
Two-way baseball star who combines elite pitching and power hitting at the highest level.
A living index.
The directory begins with 25 people in every role and will continue to grow across disciplines, regions and levels of sport.