Football is a popular sport in many countries around the world. It is played by two teams of eleven players each, and each team has specific positions on the field. The two positions mentioned in the crossword solutions are ENDS and TACKLES. ENDS are offensive players who line up at the end of the line of scrimmage and are responsible for catching passes and blocking defenders. TACKLES are defensive players who line up on either side of the line of scrimmage and are responsible for stopping the opposing team's running plays and protecting the quarterback.