Who is the biggest athlete in history?

The biggest should be O'Neill.

I don't know a lot, I only know that their top ten supergiants are, Ding Junhui , Sun Wen , Li Na , Gao Min , Lin Dan , Liu Xiang , Yao Ming , Deng Yaping , Li Ning , Lang Ping , these people have won glory for our country, and they are also miracles in the history of sports in our country.

There are many of the greatest athletes in the world, including: Woods, Federer, Jordan, Ali, Messi.

1. Woods

Eldrick Tiger Woods (born December 30, 1975) is a famous American golfer who was ranked first in the golf world until 2009 and is widely regarded as one of the most successful golfers of all time. His nickname "Tiger" means "tiger" Chinese, so Chinese is often referred to as Tiger Woods.

2. Federer

Roger Federer (born 8 August 1981 in Basel, Switzerland) is a former Swiss tennis player. In his 24-year tennis career, Federer won 1,251 men's singles matches, including 65 consecutive victories on grass and 41 consecutive victories on New Year's Eve.

He has won 103 ATP men's singles titles, including 20 Grand Slams (6 Australian Open, 1 French Open, 8 Wimbledon, 5 US Open, Masters and 6 Finals).

3, Jordan

Michael Jordan, full name Michael Jeffrey Jordan, born on February 17, 1963 in Brooklyn, New York, USA, is a former professional basketball player in the United States, playing as a shooting guard and small forward, as of February 2023, and is currently the owner of the Charlotte Hornets.

4. Ali

Muhammad Ali (January 17, 1942, June 3, 2016), formerly known as Cassius Marcellus Clay Jr. (Jr), was born in Louisville, Kentucky, USA, a famous American boxer, Olympic champion, and known as the boxing champion.

5, Messi

Lionel Messi, full name Leonel Andrés Messi Cusitini, nicknamed Leo Messi, was born on June 24, 1987 in Rosario, Santa Fe, Argentina, an Argentine professional footballer, a striker, and currently plays for Paris Saint-Germain Football Club in the French Primera League.