NFL players are turning to an unlikely hobby to improve their game: chess

If you scrunch your eyes up just as an offensive line sets for a play, the outlines of the players look like chess pieces being moved around the board by some invisible hand. Some run in the straight lines followed by a rook, some follow the diagonals of a bishop, and others hold off opponents like a pawn.

​ If you scrunch your eyes up just as an offensive line sets for a play, the outlines of the players look like chess pieces being moved around the board by some invisible hand. Some run in the straight lines followed by a rook, some follow the diagonals of a bishop, and others hold off opponents like a pawn. Read More Breaking News, Latest News and Videos | CNN