The post-game interview with Apollos Hester had been viewed more than 4.9 million times on YouTube on Wednesday night.
In the interview he encouraged people to “just keep smiling” and said “all it takes to be successful is an attitude”.
Hester scored in a touchdown before the post-match pep-talk, and his team the East View High School Patriots won their game on Sunday by one point.
“It’s an awesome feeling when you know you are going to win, when you know you are going to be successful, regardless of the scoreboard, because of the effort that you put in,” he told TWC News Austin reporter Lauren Mickler.
The video has been liked and shared thousands of times on social media, with many people commenting the young athlete’s words made their day.
Twitter user donwill wrote: “I need Apollos Hester to call me everyday at 8am for encouragement.”
“One of the most underrated goals of life is to get hyped and STAY hyped. Apollos Hester stays hyped. He a hero,” wrote user Frank Puddle.
Hester’s speech has thrown a positive spotlight on American football, following a number of recent controversies involving professional players.