The ornamental design for sidewall portion of a lacrossehead, as shown and described.
FIG. 1 is a top perspective view of an embodiment of sidewall portion of a lacrosse head showing our design.
FIG. 2 is a bottom perspective view of the sidewall portion of a lacrosse head of FIG. 1.
FIG. 3 is a right side view of the sidewall portion of a lacrosse head of FIG. 1.
FIG. 4 is a front view of the sidewall portion of a lacrosse head of FIG. 1.
FIG. 5 is a left side view of the sidewall portion of a lacrosse head of FIG. 1.
FIG. 6 is a back view of the sidewall portion of a lacrosse head of FIG. 1.
FIG. 7 is a top view of the sidewall portion of a lacrosse head of FIG. 1; and,
FIG. 8 is a bottom view of the sidewall portion of a lacrosse head of FIG. 1.
The dash-dot broken lines in the figures are unclaimed environmental and form no part of the claimed design. The bolded dash broken lines around portions of the sidewalls are unclaimed boundary and form no part of the claimed design.