Michael Jordan is often considered the greatest basketball player of all time due to his exceptional skills, athleticism, and numerous accomplishments, including six NBA championships with the Chicago Bulls.

Michael Phelps is the most decorated Olympian of all time, having won a total of 28 medals, including 23 gold medals, in swimming events at the Olympic Games.

Roger Federer is widely regarded as the greatest tennis player of all time due to his exceptional skills, longevity, and numerous Grand Slam titles, including 20 men's singles titles.

Pele is widely considered the greatest soccer player of all time, having won three FIFA World Cups with Brazil and scoring over 1,000 goals during his career.

Eddie Eagan is the only athlete to win gold medals in both the Summer and Winter Olympic Games, having won gold in boxing in 1920 and in the four-man bobsled event in 1932.

Sachin Tendulkar is the leading run-scorer in Test cricket history, having scored over 15,000 runs in his career, including 51 centuries.

Tiger Woods is the only golfer to win all four major championships in the same calendar year, achieving this feat in 2000 and 2001.

Michael Schumacher is the most successful Formula One driver of all time, having won seven world championships and 91 Grand Prix races during his career.

Michael Jordan is the only player in NBA history to win the NBA MVP, NBA Finals MVP, and NBA Defensive Player of the Year awards in the same season, which he achieved in the 1987-1988 season.

Serena Williams holds the record for the most Grand Slam titles in the Open Era, having won 23 singles titles, 14 doubles titles, and 2 mixed doubles titles.

Zinedine Zidane is the only athlete to win the World Cup, the Ballon d'Or, and the European Championship in the same year, which he achieved in 1998.

Australia holds the record for the most consecutive Test match wins, having won 16 consecutive matches between 1999 and 2001.

Usain Bolt is the only athlete to win the Olympic gold medal in the 100-meter dash three times, achieving this feat in 2008, 2012, and 2016.

Real Madrid holds the record for the most UEFA Champions League titles, having won the competition 14 times, including five consecutive titles between 1956 and 1960.

Bill Russell is the only athlete to win the NBA championship as a player, head coach, and general manager, achieving this feat with the Boston Celtics.