which sport earns the most money?
<answer> NFL is the highest-grossing sport league in the world. <context> Even though the NFL is the highest-grossing sport league in the world, the NFL continually makes moves in order to reach Commissioner Goodell's ambitious goal of $25 billion in revenue by 2027. Talks about expanded playoffs, larger television deals and even an NFL franchise in London are among the levers for continued fiscal growth.