What is the most popular sport?
Currently soccer/football is the most popular sport globally to participate in and watch with an estimated 3.5 billion fans. With the low entry cost to play and ability to be played or practiced most anywhere it makes it easy for pretty much anyone to participate.
Instruction: What is the most popular sport?
Context: 
Response: Currently soccer/football is the most popular sport globally to participate in and watch with an estimated 3.5 billion fans. With the low entry cost to play and ability to be played or practiced most anywhere it makes it easy for pretty much anyone to participate.