The ornamental design for a sportsballdisplaycarton, as shown and described.
FIG. 1 is a perspective view of a sports ball display carton showing a preferred embodiment of my new design with a sports ball shown in phantom lines;
FIG. 2 is a front elevational view thereof:
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a right side elevational view thereof;
FIG. 5 is a left side elevational view thereof; and
FIG. 6 is a top plan view thereof; and,
FIG. 7 is a bottom plan view thereof.
The phantom lines shown in FIG. 1 are included for the purpose of illustrating portions of the sports ball display carton and form no part of the claimed design.