Patrick Mahomes signed the richest contract in US sports history on Monday when the quarterback agreed a 10-year, $450 million (Dh1.65 billion) contract extension through 2031 with the Kansas City Chiefs. The value of his contract could rise to $503m over 10 years. The first three years are fully guaranteed with $63m at signing and $103.5m by March 2021, according to reports. The deal is the richest contract in the history of North American team sports and includes an injury guarantee of $140m. Mahomes, 24, was the NFL Most Valuable Player in 2018 and guided the <a href="https://www.thenational.ae/sport/north-american/patrick-mahomes-never-lost-faith-after-inspiring-kansas-city-chiefs-to-thrilling-super-bowl-victory-over-san-francisco-49ers-1.973221">Chiefs to a Super Bowl championship</a> last season. With Mahomes perched at the top of the list of most lucrative contracts in US sports, we take a look at the complete top 10 in the photo gallery above. All the contracts included are based on the overall value of the contract, rather than its annual average, hence the exclusion of athletes like Stephen Curry and James Harden. To move on to the next slide, click on the arrows, or if using a mobile device, simply swipe.