The ornamental design for a sportsfannoveltymask, as shown and described.
FIG. 1 is a perspective view of a sports fan novelty mask showing my new design, with a mask cage shown in broken lines that is not a part of the design;
FIG. 2 is a perspective view of the sports fan novelty mask shown in FIG. 1;
FIG. 3 is a front view of the sports fan novelty mask shown in FIG. 1;
FIG. 4 is a rear view of the sports fan novelty mask shown in FIG. 1;
FIG. 5 is a top view of the sports fan novelty mask shown in FIG. 1;
FIG. 6 is a bottom view of the sports fan novelty mask shown in FIG. 1;
FIG. 7 is a left side view of the sports fan novelty mask shown in FIG. 1; and,
FIG. 8 is a right side view of the sports fan novelty mask shown in FIG. 1.