FIG. 1 is a perspective view of table leg showing my new design. FIG. 2 is a front view thereof. FIG. 3 is a rear view thereof. FIG. 4 is a left end view thereof. FIG. 5 is a right view thereof. FIG. 6 is a top view thereof; and, FIG. 7 is a bottom view thereof. The broken lines are for environmental purposes only and form no part of the claimed design.