The ornamental design for a football, as shown and described.
FIG. 1 is a perspective view of a football showing my new design;
FIG. 2 is a side view of the football shown in FIG. 1;
FIG. 3 is a view of the side opposite FIG. 2;
FIG. 4 is the bottom view of the football shown in FIG. 1;
FIG. 5 is the top view of the football shown in FIG. 1;
FIG. 6 is an end view of the football shown in FIG. 1; and,
FIG. 7 is a view of the end opposite FIG. 6.
The broken lines showing portions of the football or its environment in FIGS. 1–3 and 5–7 are for illustrative purposes only and form no part of the claimed design.