The term 'Some NFL Blockers' refers to three positions in American Football: Tight Ends (TES), Right Guards (RGS), and Right Tackles (RTS). These positions are responsible for blocking opposing players from tackling the quarterback or running back. Tight Ends are usually the most athletic of the blockers, as they are often used as receivers as well. Right Guards and Right Tackles are typically the largest players on the field, and their primary job is to protect the quarterback or running back from being tackled.