Athlete endorsements are agreements where professional athletes promote products or brands in exchange for payment or other benefits. Companies often choose well-known athletes to enhance their brand image and reach a wider audience, as fans are likely to trust and follow their favorite sports figures. These endorsements can take various forms, including television commercials, social media posts, and public appearances. Successful athlete endorsements can significantly boost sales and brand recognition, making them a popular marketing strategy for companies in industries like sportswear, beverages, and fitness equipment, often featuring stars like LeBron James or Serena Williams.