Professional sports have always been about talent, competition, and unforgettable moments. But behind every superstar athlete is a contract that can change the future of a team, a league, and sometimes even an entire sport.
Over the years, contract values have exploded as television rights, sponsorship deals, and global fan bases have grown. Today, athletes are signing agreements worth hundreds of millions of dollars, and in some cases, well over a billion when endorsements are included.
In this guide, you’ll discover the 10 biggest contract signings in sports history as of 2026. These deals shocked fans, made headlines around the world, and set new standards for what elite athletes can earn.
Quick Summary Table 📊
| Rank | Athlete | Sport | Team | Contract Value |
|---|---|---|---|---|
| 1 | Juan Soto | Baseball | New York Mets | $765 Million |
| 2 | Shohei Ohtani | Baseball | Los Angeles Dodgers | $700 Million |
| 3 | Lionel Messi | Soccer | FC Barcelona Extension | Approx. $674 Million |
| 4 | Patrick Mahomes | Football | Kansas City Chiefs | $503 Million |
| 5 | Mike Trout | Baseball | Los Angeles Angels | $426.5 Million |
| 6 | Mookie Betts | Baseball | Los Angeles Dodgers | $365 Million |
| 7 | Aaron Judge | Baseball | New York Yankees | $360 Million |
| 8 | Kylian Mbappé | Soccer | Paris Saint-Germain Extension | Estimated $300 Million+ Package |
| 9 | Canelo Álvarez | Boxing | DAZN Partnership | $365 Million Deal |
| 10 | Cristiano Ronaldo | Soccer | Al Nassr | Estimated $200 Million Per Year |
How We Ranked These Contract Signings 🎯
We used several important factors when ranking the biggest sports contracts:
- Total guaranteed contract value
- Length of the agreement
- Historical significance
- Impact on the athlete’s sport
- Financial risk taken by the team or organization
- Influence on future player negotiations
- Global media attention generated
- Long-term effect on franchise value
1. Juan Soto and the New York Mets – $765 Million 💰
When Juan Soto signed his record-breaking contract with the New York Mets, the sports world stopped and paid attention. The agreement became the largest player contract ever signed in professional sports history.
Soto entered free agency in the prime of his career. He was already considered one of baseball’s most complete hitters, combining power, patience, and consistency at an elite level. The Mets believed Soto could become the face of the franchise for more than a decade.
What made this contract remarkable was not just the total value but also the commitment involved. The Mets invested heavily in a player who could shape the organization’s future while helping them compete for championships year after year.
The deal instantly changed the baseball market and established a new benchmark for superstar talent.
2. Shohei Ohtani and the Los Angeles Dodgers – $700 Million ⚾
Shohei Ohtani’s move to the Los Angeles Dodgers became one of the most talked-about signings in sports history.
Ohtani is unlike any athlete baseball has ever seen. He excels both as a pitcher and a hitter, something that has rarely been accomplished at an elite level in modern baseball.
The contract’s structure attracted almost as much attention as its value. A large portion of the money was deferred, allowing the Dodgers greater flexibility to build a competitive roster around him.
Beyond his on-field impact, Ohtani brings enormous international popularity. His presence boosts merchandise sales, television ratings, sponsorship opportunities, and global interest in Major League Baseball.
The signing proved that elite talent combined with worldwide appeal can create unprecedented financial value.
3. Lionel Messi’s FC Barcelona Extension – Approx. $674 Million 🌍
Lionel Messi spent most of his legendary career with Barcelona, and one of his contract extensions became one of the richest agreements ever signed in sports.
At the time, Messi was widely viewed as the best soccer player in the world. He consistently delivered goals, assists, championships, and unforgettable performances.
Barcelona’s decision to commit such enormous resources reflected his importance to the club. Messi was not simply a player. He was the centerpiece of the team’s identity and a global marketing powerhouse.
Fans around the world followed his every move, and his influence extended far beyond the soccer field.
This contract demonstrated how valuable a once-in-a-generation athlete can become to a global sports organization.
4. Patrick Mahomes and the Kansas City Chiefs – $503 Million 🏈
Patrick Mahomes transformed quarterback contracts forever when he agreed to a massive long-term deal with the Kansas City Chiefs.
Mahomes had already won league awards and helped deliver a championship. His combination of athleticism, leadership, and playmaking ability convinced the Chiefs that he was worth a historic investment.
The agreement stretched over a decade, giving Kansas City stability at the most important position in football.
Many experts viewed the contract as risky because of its length. However, Mahomes quickly justified the investment through continued success and additional championship appearances.
Today, his deal is often considered one of the smartest long-term investments in sports history.
5. Mike Trout and the Los Angeles Angels – $426.5 Million 🐟
Mike Trout’s contract extension with the Los Angeles Angels represented a major commitment to one of baseball’s most talented players.
For years, Trout dominated the sport with a rare combination of power, speed, defense, and consistency. Many analysts considered him the best player of his generation.
The Angels wanted to ensure he remained with the organization throughout his prime years.
The deal reflected both Trout’s incredible production and the growing financial strength of Major League Baseball.
Although team success remained difficult to achieve, Trout’s individual excellence made the contract one of the biggest and most significant agreements ever signed.
6. Mookie Betts and the Los Angeles Dodgers – $365 Million 🚀
Mookie Betts earned his massive extension after establishing himself as one of baseball’s most complete players.
The Dodgers recognized his value immediately. Rather than risk losing him in free agency, they secured his future with a long-term agreement.
Betts contributes in nearly every area of the game. He hits for average, provides power, plays excellent defense, and brings leadership to the clubhouse.
His signing reinforced the Dodgers’ commitment to building a championship-caliber roster while maintaining long-term competitiveness.
The deal also showed how teams increasingly prioritize all-around players who can impact games in multiple ways.
7. Aaron Judge and the New York Yankees – $360 Million 🗽
Aaron Judge became one of baseball’s biggest stars thanks to his remarkable power and leadership.
After a historic home run season, the Yankees faced enormous pressure to keep their franchise player. Losing Judge would have disappointed fans and weakened the team’s future plans.
The organization responded with one of the largest contracts in sports history.
Judge’s combination of performance, popularity, and marketability made him especially valuable in New York’s demanding sports environment.
His signing highlighted how iconic athletes can become closely tied to a team’s identity and brand.
8. Kylian Mbappé and Paris Saint-Germain – Estimated $300 Million+ Package ⭐
Kylian Mbappé’s contract extension with Paris Saint-Germain generated worldwide attention.
At a young age, Mbappé had already become one of soccer’s most recognizable stars. His speed, scoring ability, and international success made him one of the most sought-after players in the sport.
PSG worked aggressively to keep him from leaving, reportedly offering an enormous package that included salary, bonuses, and incentives.
The agreement demonstrated how valuable elite soccer talent has become in the modern era.
For PSG, retaining Mbappé was about more than winning matches. It was about maintaining global relevance and protecting the club’s future ambitions.
9. Canelo Álvarez and DAZN – $365 Million 🥊
Boxing contracts differ from traditional team sports agreements, but Canelo Álvarez’s deal with DAZN remains one of the largest ever.
The agreement aimed to make Canelo the centerpiece of a major streaming platform’s boxing strategy.
At the time, Canelo was one of the sport’s biggest attractions and consistently generated huge audiences.
The partnership represented a major shift in how sports content could be delivered directly to fans through streaming services.
Although the agreement eventually changed, its original value placed it among the most significant contracts in sports history.
10. Cristiano Ronaldo and Al Nassr – Estimated $200 Million Per Year 👑
Cristiano Ronaldo’s move to Al Nassr changed perceptions of athlete earnings in global soccer.
The agreement reportedly included salary, commercial opportunities, ambassador roles, and various incentives that pushed annual earnings to extraordinary levels.
Ronaldo’s arrival immediately increased worldwide interest in Saudi Arabian soccer. Television audiences grew, sponsorship opportunities expanded, and more international players began considering moves to the region.
His contract illustrated how superstar athletes can influence entire leagues and sports ecosystems.
The signing was about much more than goals and victories. It was also a statement about the future direction of global soccer investment.
Conclusion 🏆
The biggest contract signings in sports history reveal just how valuable elite athletes have become. Teams and organizations are willing to spend hundreds of millions of dollars because superstars drive ticket sales, television ratings, merchandise revenue, sponsorship deals, and championships.
From Juan Soto’s record-breaking baseball agreement to Cristiano Ronaldo’s groundbreaking soccer deal, these contracts changed expectations across the sports world.
As sports continue to grow internationally and media rights become even more valuable, it would not be surprising to see future contracts surpass every deal on this list. The next generation of superstars may soon push athlete earnings to levels that seem impossible today.
Frequently Asked Questions ❓
Which sport has the largest player contracts overall?
Baseball currently dominates the list of the largest guaranteed contracts. Major League Baseball contracts are often fully guaranteed, which allows total values to reach extraordinary levels.
Why are baseball contracts usually larger than NFL contracts?
Baseball contracts typically include full guarantees, while NFL contracts often contain non-guaranteed portions. This difference significantly impacts total contract values.
What is the difference between contract value and annual salary?
Contract value refers to the total amount earned over the life of the agreement. Annual salary measures how much a player earns each year on average.
Could a sports contract eventually reach $1 billion?
Yes. With increasing media revenues, global audiences, and sponsorship opportunities, many experts believe a fully guaranteed $1 billion player contract could happen in the future.
Do endorsements count toward these contract rankings?
Generally, rankings focus on official playing contracts. Endorsement earnings are usually separate, although they can sometimes exceed a player’s salary.
