We claim the ornamental design for a basketball, as shown and described.
FIG. 1 is a side perspective view of the basketball embodying our new design;
FIG. 2 is a front view thereof;
FIG. 3 is a side view thereof;
FIG. 4 is a rear view thereof;
FIG. 5 is the side view opposite to FIG. 3;
FIG. 6 is an enlarged view of the area indicated by line 6 in FIG. 2; and,
FIG. 7 is a sectional view taken along line 7-7 of FIG. 6.
The ornamental design that is claimed is shown in solid lines in the drawings. The broken (dashed) lines shown in FIGS. 1 through 7 are included for the purpose of illustrating portions of the basketball that form no part of the claimed design.