The ornamental design for a tennisracketweight, as shown and described.
FIG. 1 is a front elevational view of the tennis racket weight showing my new design, the rear elevational view being a mirror image of the front elevational view;
FIG. 2 is a top plan view thereof;
FIG. 3 is a bottom plan view thereof;
FIG. 4 is a left side elevational view thereof, the right side view being a mirror image of the left side view; and,
FIG. 5 is a cross-sectional view taken along the line 5—5 in FIG. 2.